TY - JOUR
A1 - Fischer, Michael
A1 - Herter, Jürgen
A1 - Brandes, Klaus
A1 - Fischer, Michael
T1 - 100 Jahre U-Bahn in Deutschland : zur Ermüdungssicherheit eines Stahlviadukts der Linie 1 in Berlin
JF - Stahlbau
Y1 - 2002
SN - 0038-9145
VL - 71
IS - 2
SP - 97
EP - 107
ER -
TY - GEN
A1 - Weißhaupt, David
A1 - Funk, Hannes S.
A1 - Sürgers, Christoph
A1 - Fischer, Gerda
A1 - Oehme, Michael
A1 - Schwarz, Daniel
A1 - Fischer, Inga Anita
A1 - Slageren, Joris van
A1 - Schulze, Jörg
T1 - Formation of Mn5Ge3 on a Recess-Etched Ge (111) Quantum-Well Structure for Semiconductor Spintronics
T2 - 44th International Convention on Information, Communication and Electronic Technology, MIPRO 2021, Opatija, Croatia, September 27 - Oct. 1, 2021
Y1 - 2021
SN - 978-1-6654-4761-4
U6 - https://doi.org/10.23919/MIPRO52101.2021.9596924.
SN - 978-953-233-101-1
SP - 45
EP - 49
PB - Piscataway
CY - IEEE
ER -
TY - GEN
A1 - Weißhaupt, David
A1 - Sürgers, Christoph
A1 - Bloos, Dominik
A1 - Funk, Hannes Simon
A1 - Oehme, Michael
A1 - Fischer, Gerda
A1 - Schubert, Markus Andreas
A1 - Wenger, Christian
A1 - van Slageren, Joris
A1 - Fischer, Inga Anita
A1 - Schulze, Jörg
T1 - Lateral Mn5Ge3 spin-valve in contact with a high-mobility Ge two-dimensional hole gas
T2 - Semiconductor Science and Technology
N2 - Abstract
Ge two-dimensional hole gases (2DHG) in strained modulation-doped quantum-wells represent a promising material platform for future spintronic applications due to their excellent spin transport properties and the theoretical possibility of efficient spin manipulation. Due to the continuous development of epitaxial growth recipes extreme high hole mobilities and low effective masses can be achieved, promising an efficient spin transport. Furthermore, the Ge 2DHG can be integrated in the well-established industrial complementary metal-oxide-semiconductor (CMOS) devices technology. However, efficient electrical spin injection into a Ge 2DHG—an essential prerequisite for the realization of spintronic devices—has not yet been demonstrated. In this work, we report the fabrication and low-temperature magnetoresistance (MR) measurements of a laterally structured Mn5Ge3/Ge 2DHG/ Mn5Ge3 device. The ferromagnetic Mn5Ge3 contacts are grown directly into the Ge quantum well by means of an interdiffusion process with a spacing of approximately 130 nm, forming a direct electrical contact between the ferromagnetic metal and the Ge 2DHG. Here, we report for the first time a clear MR signal for temperatures below 13 K possibly arising from successful spin injection into the high mobility Ge 2DHG. The results represent a step forward toward the realization of CMOS compatible spintronic devices based on a 2DHG.
KW - two-dimensional hole gas
Y1 - 2024
U6 - https://doi.org/10.1088/1361-6641/ad8d06
SN - 0268-1242
VL - 39
IS - 12
SP - 1
EP - 10
PB - IOP Publishing
ER -
TY - GEN
A1 - Neyret, Margot
A1 - Le Provost, Gaëtane
A1 - Boesing, Andrea Larissa
A1 - Schneider, Florian D.
A1 - Baulechner, Dennis
A1 - Bergmann, Joana
A1 - Vries, Franciska T. de
A1 - Fiore-Donno, Anna Maria
A1 - Geisen, Stefan
A1 - Goldmann, Kezia
A1 - Merges, Anna
A1 - Saifutdinov, Ruslan A.
A1 - Simons, Nadja K.
A1 - Tobias, Joseph A.
A1 - Zaitsev, Andrey S.
A1 - Gossner, Martin M.
A1 - Jung, Kirsten
A1 - Kandeler, Ellen
A1 - Krauss, Jochen
A1 - Penone, Caterina
A1 - Schloter, Michael
A1 - Schulz, Stefanie
A1 - Staab, Michael
A1 - Wolters, Volkmar
A1 - Apostolakis, Antonios
A1 - Birkhofer, Klaus
A1 - Boch, Steffen
A1 - Boeddinghaus, Runa S.
A1 - Bolliger, Ralph
A1 - Bonkowski, Michael
A1 - Buscot, François
A1 - Dumack, Kenneth
A1 - Fischer, Markus
A1 - Gan, Huei Ying
A1 - Heinze, Johannes
A1 - Hölzel, Norbert
A1 - John, Katharina
A1 - Klaus, Valentin H.
A1 - Kleinebecker, Till
A1 - Marhan, Sven
A1 - Müller, Jörg
A1 - Renner, Swen C.
A1 - Rillig, Matthias C.
A1 - Schenk, Noëlle V.
A1 - Schöning, Ingo
A1 - Schrumpf, Marion
A1 - Seibold, Sebastian
A1 - Socher, Stephanie A.
A1 - Solly, Emily F.
A1 - Teuscher, Miriam
A1 - Kleunen, Mark van
A1 - Wubet, Tesfaye
A1 - Manning, Peter
T1 - A slow-fast trait continuum at the whole community level in relation to land-use intensification
T2 - Nature Communications
N2 - AbstractOrganismal functional strategies form a continuum from slow- to fast-growing organisms, in response to common drivers such as resource availability and disturbance. However, whether there is synchronisation of these strategies at the entire community level is unclear. Here, we combine trait data for 2800 above- and belowground taxa from 14 trophic guilds spanning a disturbance and resource availability gradient in German grasslands. The results indicate that most guilds consistently respond to these drivers through both direct and trophically mediated effects, resulting in a ‘slow-fast’ axis at the level of the entire community. Using 15 indicators of carbon and nutrient fluxes, biomass production and decomposition, we also show that fast trait communities are associated with faster rates of ecosystem functioning. These findings demonstrate that ‘slow’ and ‘fast’ strategies can be manifested at the level of whole communities, opening new avenues of ecosystem-level functional classification.
KW - General Physics and Astronomy
KW - General Biochemistry
KW - General Chemistry
KW - Multidisciplinary
KW - Genetics and Molecular Biology
Y1 - 2024
U6 - https://doi.org/10.1038/s41467-024-45113-5
SN - 2041-1723
VL - 15
IS - 1
ER -
TY - GEN
A1 - Körner, Roman
A1 - Schwarz, Daniel
A1 - Fischer, Inga Anita
A1 - Augel, Lion
A1 - Bechler, Stefan
A1 - Hänel, Linda A.
A1 - Kern, Michael
A1 - Oehme, Michael
A1 - Rolseth, Erlend Granbo
A1 - Schwartz, Bernhard
A1 - Weißhaupt, David
A1 - Zhang, Wogong
A1 - Schulze, Jörg
T1 - The Zener-Emitter: A Novel Superluminescent Ge Optical Waveguide-Amplifier with 4.7 dB Gain at 92 mA Based on Free-Carrier Modulation by Drect Zener Tunneling Monolithically Integrated on Si
T2 - 2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016
Y1 - 2016
SN - 978-1-5090-3901-2
SN - 978-1-5090-3902-9
SP - 22.5.1
EP - 22.5.4
PB - IEEE
CY - Piscataway, NJ
ER -
TY - CHAP
A1 - Fischer, Michael
A1 - Günther, Michael
A1 - Berger, Carsten
A1 - Troeger, Ralf
A1 - Pasternak, Michal
A1 - Mauß, Fabian
ED - Günther, Michael
ED - Sens, Marc
T1 - Suppressing Knocking by Using CleanEGR – Better Fuel Economy and Lower Raw Emissions Simultaneously
T2 - Knocking in Gasoline Engines, 5th International Conference, December 12-13, 2017, Berlin, Germany
KW - Suppressing Knocking
Y1 - 2018
SN - 978-3-319-69760-4
U6 - https://doi.org/10.1007/978-3-319-69760-4_21
SP - 384
PB - Springer International Publishing
CY - Cham
ER -
TY - CHAP
A1 - Pasternak, Michal
A1 - Netzer, Corinna
A1 - Mauß, Fabian
A1 - Fischer, Michael
A1 - Sens, Marc
A1 - Riess, Michael
ED - Günther, Michael
ED - Sens, Marc
T1 - Simulation of the Effects of Spark Timing and External EGR on Gasoline Combustion Under Knock-Limited Operation at High Speed and Load
T2 - Knocking in Gasoline Engines, 5th International Conference, December 12-13, 2017, Berlin, Germany
Y1 - 2018
SN - 978-3-319-69760-4
U6 - https://doi.org/10.1007/978-3-319-69760-4_8
SP - 121
EP - 142
PB - Springer International Publishing
CY - Cham
ER -
TY - GEN
A1 - Funk, Hannes S.
A1 - Kern, Michael
A1 - Weisshaupt, David
A1 - Sürgers, Christoph
A1 - Fischer, Inga Anita
A1 - Oehme, Michael
A1 - Slageren, Joris van
A1 - Schulze, Jörg
T1 - Magnetic Characterization of a Mn Based Ferromagnet on SixGe(1-x-y)Sny with High Sn Content
T2 - ECS Transactions
Y1 - 2019
U6 - https://doi.org/10.1149/09301.0101ecst
SN - 1938-5862
SN - 1938-6737
VL - 93
IS - 1
SP - 101
EP - 104
ER -
TY - GEN
A1 - Funk, Hannes S.
A1 - Kern, Michael
A1 - Weißhaupt, David
A1 - Sürgers, Christoph
A1 - Fischer, Inga Anita
A1 - Oehme, Michael
A1 - Slageren, Joris van
A1 - Schulze, Jörg
T1 - Composition and magnetic properties of thin films grown by interdiffusion of Mn and Sn-Rich, Ge lattice matched SixGe1-x-ySny layers
T2 - Journal of Magnetism and Magnetic Materials
Y1 - 2022
U6 - https://doi.org/10.1016/j.jmmm.2021.168731.
SN - 0304-8853
VL - 546
ER -
TY - GEN
A1 - Schulz, Stefanie
A1 - Engel, Marion
A1 - Fischer, Doreen
A1 - Buegger, Franz
A1 - Elmer, Michael
A1 - Welzl, Gerhard
A1 - Schloter, Michael
T1 - Diversity pattern of nitrogen fixing microbes in nodules of Trifolium arvense (L.) at different initial stages of ecosystem development
T2 - Biogeosciences
KW - nitrogen fixing microbes
Y1 - 2013
SN - 1726-4189
VL - 10
IS - 3
SP - 1183
EP - 1192
ER -
TY - GEN
A1 - Schulz, Stefanie
A1 - Engel, Marion
A1 - Fischer, Doreen
A1 - Buegger, Franz
A1 - Elmer, Michael
A1 - Welzl, Gerhard
A1 - Schloter, Michael
T1 - Diversity patterns of nitrogen fixing microbes in nodules of Trifolium arvense (L.) at different initial stages of ecosystem development
T2 - Biogeosciences Discussion
Y1 - 2012
SN - 1810-6285
VL - 9
IS - 9
SP - 13135
EP - 13160
ER -
TY - GEN
A1 - Schaaf, Wolfgang
A1 - Bens, Oliver
A1 - Fischer, Anton
A1 - Gerke, Horst H.
A1 - Gerwin, Werner
A1 - Grünewald, Uwe
A1 - Holländer, Hartmut M.
A1 - Kögel-Knabner, Ingrid
A1 - Mutz, Michael
A1 - Schloter, Michael
A1 - Schulin, Rainer
A1 - Veste, Maik
A1 - Winter, Susanne
A1 - Hüttl, Reinhard F.
T1 - Patterns and processes of initial terrestrial-ecosystem development
T2 - Journal of Plant Nutrition and Soil Science
N2 - Ecosystems are characterized as complex systems with abiotic and biotic processes interacting between the various components that have evolved over long-term periods. Most ecosystem studies so far have been carried out in mature systems. Only limited knowledge exists on the very initial phase of ecosystem development. Concepts on the development of ecosystems are often based on assumptions and extrapolations with respect to structure–process interactions in the initial stage. To characterize the effect of this initial phase on structure and functioning of ecosystems in later stages, it is necessary to disentangle the close interaction of spatial and temporal patterns of ecosystem structural assemblages with processes of ecosystem development. The study of initial, less complex systems could help to better identify and characterize coupled patterns and processes. This paper gives an overview of concepts for the initial development of different ecosystem compartments and identifies open questions and research gaps. The artificial catchment site “Chicken Creek” is introduced as a new research approach to investigate these patterns and processes of initial ecosystem development under defined boundary conditions. This approach allows to integrate the relevant processes with related pattern and structure development over temporal and spatial scales and to derive thresholds and stages in state and functioning of ecosystems at the catchment level.
KW - soils
KW - pedogenesis
KW - vegetation succession
KW - microbial succession
KW - artificial catchment
Y1 - 2011
U6 - https://doi.org/10.1002/jpln.201000158
SN - 1522-2624
VL - 174
IS - 2
SP - 229
EP - 239
ER -
TY - JOUR
A1 - Lorenz, Werner
A1 - Fischer, Michael
T1 - 100 Jahre U-Bahn in Deutschland : konstruktive Bestandsaufnahme und meßwertbasierte Tragwerksmodellierung eines Stahlviadukts der Linie 1 in Berlin
JF - Stahlbau
Y1 - 2002
SN - 0038-9145
VL - 71
IS - 2
SP - 88
EP - 96
ER -
TY - JOUR
A1 - Lorenz, Werner
A1 - Brandes, Klaus
A1 - Fischer, Michael
T1 - 100 Jahre U-Bahn in Deutschland : Editorial
JF - Stahlbau
Y1 - 2002
SN - 0038-9145
VL - 71
IS - 2
SP - 77
EP - 78
ER -
TY - CHAP
A1 - Fischer, Michael
T1 - Innovation durch Konkurrenz - Steineisendecken
Y1 - 2004
ER -
TY - THES
A1 - Fischer, Michael
T1 - Steineisendecken im Deutschen Reich 1892-1925 : Bd. 1 - 3
N2 - Bd. 1. Entwicklungsgeschichte, Typologie und Bewertung. Bd. 2. Katalog und Herstellungsverfahren. Bd. 3. Anlagen
KW - Deutschland
KW - Decke
KW - Stahlbeton
KW - Geschichte
Y1 - 2008
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-7812
ER -
TY - GEN
A1 - Schwartz, Bernhard
A1 - Oehme, Michael
A1 - Kostecki, Konrad
A1 - Widmann, Daniel
A1 - Gollhofer, Martin
A1 - Körner, Roman
A1 - Bechler, Stefan
A1 - Fischer, Inga Anita
A1 - Wendav, Torsten
A1 - Kasper, Erich
A1 - Schulze, Jörg
A1 - Kittler, Martin
T1 - Electroluminescence of GeSn/Ge MQW LEDs on Si substrate
T2 - Optics Letters
Y1 - 2015
U6 - https://doi.org/10.1364/OL40.003209
VL - 40
IS - 13
SP - 3209
EP - 3212
ER -
TY - CHAP
A1 - Krüger, Perco
A1 - Nimtz, Michael
A1 - Fischer, Ulrich
A1 - Krautz, Hans Joachim
ED - Schulz, Detlef
T1 - Einsatzsimulation zur Erbringung von Primärregelleistung mit Batteriespeichern
T2 - Nachhaltige Energieversorgung und Integration von Speichern,
Tagungsband zur NEIS 2015
Y1 - 2015
SN - 978-3-658-10957-8
SP - 95
EP - 101
PB - Springer
CY - Wiesbaden
ER -
TY - CHAP
A1 - Krüger, Perco
A1 - Nimtz, Michael
A1 - Fischer, Ulrich
A1 - Krautz, Hans Joachim
T1 - Simulation des Einsatzes von kapazitiv begrenzten Anlagen in der Primärregelleistung
T2 - Kraftwerkstechnik 2015, Strategien, Anlagentechnik und Betrieb,Beiträge des 47. Kraftwerkstechnischen Kolloquiums vom 13. und 14. Oktober 2015 in Dresden
Y1 - 2015
SN - 978-3-934409-70-5
SP - 667
EP - 682
PB - SAXONIA
CY - Freiberg
ER -
TY - CHAP
A1 - Fischer, Ulrich
A1 - Krautz, Hans Joachim
A1 - Wenske, Michael
A1 - Tannert, Daniel
A1 - Krüger, Perco
A1 - Ziems, Christian
A1 - Stolten, Detlef
A1 - Emonts, Bernd
T1 - Hydrogen Hybrid Power Plant in Prenzlau, Brandenburg
T2 - Hydrogen Science and Engineering - Materials, Processes, Systems and Technology, Bd. 2
Y1 - 2016
SN - 978-3-5273323-8-0
SP - 1033
EP - 1052
PB - Wiley-VCH
CY - Weinheim
ER -
TY - GEN
A1 - Fischer, Michael
A1 - Lorenz, Werner
T1 - Stahlbau unter Denkmalschutz - Grundinstandsetzung von Viadukt und Bahnhöfen der Hochbahnlinie U2 in Berlin-Prenzlauer Berg
T2 - Stahlbau
Y1 - 2011
U6 - https://doi.org/10.1002/stab.201101446
SN - 0038-9145
VL - 80
IS - 6
SP - 419
EP - 427
ER -
TY - CHAP
A1 - Radow, Georg
A1 - Breuß, Michael
A1 - Hoeltgen, Laurent
A1 - Fischer, Thomas
ED - Sharma, Puneet
ED - Filippo, Maria Bianchi
T1 - Optimised Anisotropic Poisson Denoising
T2 - Image Analysis, 20th Scandinavian Conference, SCIA 2017, Tromsø, Norway, June 12–14, 2017, Proceedings, Part I
Y1 - 2017
SN - 978-3-319-59126-1
SN - 978-3-319-59125-4
U6 - https://doi.org/10.1007/978-3-319-59126-1_42
SP - 502
EP - 514
PB - Springer
CY - Cham
ER -
TY - GEN
A1 - Fischer, Simon
A1 - Foerster, Michael
A1 - Aballe, Lucia
A1 - Vonk, Vedran
A1 - Falta, Jens
A1 - Krisponeit, Jon-Olaf
A1 - Flege, Jan Ingo
T1 - Vanadium dioxide thin films on (100)- and (110)-oriented ruthenium dioxide islands
T2 - Verhandlungen der DPG
N2 - Bulk vanadium dioxide exhibits a metal-insulator transition at 68 ∘C. Because this change in resistivity is linked to a structural transition, the transition temperature can be tuned by epitaxial strain. Due to the high lattice mismatch of RuO2 with VO2, this substrate promises a highly shifted transition temperature, which enables new types of switching devices, smart coatings, and sensors. It is prepared by oxidizing a Ru(0001) crystal, providing micron-sized, (110)- as well as (100)-oriented RuO2 islands simultaneously.
One of the challenges in preparing VO2 is to reliably meet the desired stoichiometry. We investigated the vanadium oxidation state using local XAS and XPS measurements taken at a synchrotron-based XPEEM instrument, revealing that VO2 stoichiometry is maintained throughout the entire film. This was found not only on RuO2(100) and RuO2(110), but also on the bare ruthenium substrate. The VO2 film thickness was determined to 3.6 nm by ex situ XRR measurements.
Financial support from the DFG is acknowledged.
KW - transition temperature
KW - strain
KW - synchrotron-based XPEEM
KW - local X-Ray absorption spectroscopy (XAS)
KW - local X-Ray photoelectron spectroscopy (XPS)
Y1 - 2019
UR - https://www.dpg-verhandlungen.de/year/2019/conference/regensburg/part/o/session/37/contribution/5
SN - 0420-0195
SP - 330
EP - 330
PB - Deutsche Physikalische Gesellschaft
CY - Bad Honnef
ER -
TY - GEN
A1 - Fischer, Inga Anita
A1 - Clausen, Caterina J.
A1 - Schwarz, Daniel
A1 - Zaumseil, Peter
A1 - Capellini, Giovanni
A1 - Virgilio, Michele
A1 - Da Silva Figueira, Maria Cecilia
A1 - Birner, Stefan
A1 - Koelling, Sebastian
A1 - Koenraad, Paul M.
A1 - Huang, Michael R. S.
A1 - Koch, Christoph T.
A1 - Wendav, Torsten
A1 - Busch, Kurt
A1 - Schulze, Jörg
T1 - Composition analysis and transition energies of ultrathin Sn-rich GeSn quantum wells
T2 - Physical Review Materials
Y1 - 2020
U6 - https://doi.org/10.1103/PhysRevMaterials.4.024601
SN - 2475-9953
VL - 4
IS - 2
ER -
TY - GEN
A1 - Fischer, Simon
A1 - Krisponeit, Jon-Olaf
A1 - Foerster, Michael
A1 - Aballe, Lucia
A1 - Falta, Jens
A1 - Flege, Jan Ingo
T1 - Massively Strained VO2 Thin Film Growth on RuO2
T2 - Crystal Growth & Design
N2 - Strain engineering vanadium dioxide thin films is one way to alter this material’s characteristic first order transition from semiconductor to metal. In this study, we extend the exploitable strain regime by utilizing the very large lattice mismatch of 8.78% occurring in the VO2/RuO2 system along the c axis of the rutile structure. We have grown VO2 thin films on single-domain RuO2 islands of two distinct surface orientations by atomic oxygen-supported reactive molecular beam epitaxy (MBE). These films were examined by spatially resolved photoelectron and X-ray absorption spectroscopy, confirming the correct stoichiometry. Low energy electron diffraction then reveals the VO2 films grow indeed fully strained on RuO2(110), exhibiting a previously unreported (2 × 2) reconstruction. On TiO2(110) substrates, we reproduce this reconstruction and attribute it to an oxygen-rich termination caused by the high oxygen chemical potential. On RuO2(100), on the contrary, the films grow fully relaxed. Hence, the presented growth method allows for simultaneous access to a remarkable strain window ranging from bulk-like structures to massively strained regions.
KW - strain engineering
KW - vanadium dioxide (VO2)
KW - ruthenium dioxide (RuO2)
KW - reactive molecular beam epitaxy (MBE)
KW - low energy electron microscopy (LEEM)
KW - photoemission electron microscopy (PEEM)
KW - low energy electron diffraction (LEED)
KW - XPEEM
KW - µLEED
Y1 - 2020
U6 - https://doi.org/10.1021/acs.cgd.0c00120
SN - 1528-7483
SN - 1528-7505
VL - 20
IS - 4
SP - 2734
EP - 2741
ER -
TY - GEN
A1 - Schlykow, Viktoria
A1 - Manganelli, Constanza Lucia
A1 - Römer, Friedhard
A1 - Clausen, Caterina J.
A1 - Augel, Lion
A1 - Schulze, Jörg
A1 - Katzer, Jens
A1 - Schubert, Michael Andreas
A1 - Witzigmann, Bernd
A1 - Schroeder, Thomas
A1 - Capellini, Giovanni
A1 - Fischer, Inga Anita
T1 - Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas
T2 - Nanotechnology
Y1 - 2020
U6 - https://doi.org/10.1088/1361-6528/ab91ef
SN - 1361-6528
VL - 31
IS - 34
ER -
TY - GEN
A1 - Augel, Lion
A1 - Fischer, Inga Anita
A1 - Gollhofer, Martin
A1 - Oehme, Michael
A1 - Schulze, Jörg
T1 - Comparing Fourier transform infrared spectroscopy results with photocurrent measurements for Ge-on-Si PIN photodetectors with and without Al nanoantennas
T2 - Journal of Applied Physics
Y1 - 2020
U6 - https://doi.org/10.1063/5.0012279
SN - 1089-7550
VL - 128
IS - 1
SP - 013105-1
EP - 013105-8
ER -
TY - GEN
A1 - Fischer, Simon
A1 - Flege, Jan Ingo
A1 - Foerster, Michael
A1 - Aballe, Lucia
A1 - Falta, Jens
A1 - Krisponeit, Jon-Olaf
T1 - Strongly Strained VO2 Thin Film Growth
T2 - Verhandlungen der DPG - SurfaceScience21
N2 - The semiconductor-metal transition temperature of VO2 strongly shifts as a result of strain applied along the rutile c axis, making it interesting for various switching applications, as smart coatings and as sensors. In the past, this has been demonstrated, for instance, through the application of epitaxial strain on TiO2 substrates.
We extend this tailoring approach by utilizing the much larger lattice mismatch of 8.78 % occurring in the VO2/RuO2 system for orientations where the c axis lies in-plane. Depositing vanadium oxide by atomic oxygen-supported reactive MBE on an oxidized Ru(0001) template, we have grown VO2 thin films on single domain RuO2 islands with distinct orientations. Locally resolved electron spectroscopy was used to ascertain the correct stoichiometry of the grown VO2 films on all template island types. Low energy electron diffraction reveals the VO2 films to grow indeed fully strained on RuO2(110) but fully relaxed on RuO2(100).
Hence, the presented template allows for simultaneous access to a remarkable strain window ranging from bulk-like structures to regions of massive tensile strain.
KW - vanadium oxide (VO2)
KW - strain
KW - ruthenium oxide
KW - Locally resolved electron spectroscopy
KW - Low energy electron diffraction (LEED)
KW - MBE
Y1 - 2021
UR - https://www.dpg-verhandlungen.de/year/2021/conference/surfacescience/part/o/session/74/contribution/3
VL - 2021
PB - Deutsche Physikalische Gesellschaft e.V.
CY - Bad Honnef
ER -
TY - GEN
A1 - Weißhaupt, David
A1 - Funk, Hannes S.
A1 - Kern, Michal
A1 - Dettling, Marco M.
A1 - Schwarz, Daniel
A1 - Oehme, Michael
A1 - Sürgers, Christoph
A1 - Slageren, Joris van
A1 - Fischer, Inga Anita
A1 - Schulze, Jörg
T1 - Weak localization and weak antilocalization in doped Ge1-ySny layers with up to 8% Sn
T2 - Journal of Physics: Condensed Matter
Y1 - 2021
U6 - https://doi.org/10.1088/1361-648X/abcb68
SN - 1361-648X
VL - 33
IS - 8
ER -
TY - GEN
A1 - Schlipf, Jon
A1 - Tetzner, Henriette
A1 - Spirito, Davide
A1 - Manganelli, Constanza Lucia
A1 - Capellini, Giovanni
A1 - Huang, Michael R. S.
A1 - Koch, Christoph T.
A1 - Clausen, Caterina J.
A1 - Elsayed, Ahmed
A1 - Schulze, Jörg
A1 - Fischer, Inga Anita
T1 - Raman shifts in MBE‐grown SixGe1 − x − ySny alloys with large Si content
T2 - Journal of Raman Spectroscopy
Y1 - 2021
U6 - https://doi.org/10.1002/jrs.6098
SN - 1097-4555
ER -
TY - GEN
A1 - Bergmann, Fritz
A1 - Ayasse, Markus
A1 - Schlipf, Jon
A1 - Mörz, Florian
A1 - Weißhaupt, David
A1 - Oehme, Michael
A1 - Prucnal, Slawomir
A1 - Kawaguchi, Yuma
A1 - Schwarz, Daniel
A1 - Fischer, Inga Anita
A1 - Schulze, Jörg
T1 - Plasmonic gratings from highly doped Ge1−ySny films on Si
T2 - Journal of Physics D: Applied Physics
Y1 - 2021
SN - 1361-6463
VL - 54
IS - 44
ER -
TY - GEN
A1 - Berkmann, Fritz
A1 - Augel, Lion
A1 - Hack, Michael
A1 - Kawaguchi, Yuma
A1 - Weißhaupt, David
A1 - Fischer, Inga Anita
A1 - Schulze, Jörg
T1 - Optimization of fully integrated Al nanohole array-based refractive index sensors for use with a LED light source Fritz Berkmann
T2 - IEEE Photonics Journal
KW - Sensors
KW - Refractive index
KW - Optical variables control
KW - Optical refraction
KW - Optical device fabrication
KW - Germanium
KW - Solid modeling
Y1 - 2022
UR - https://ieeexplore.ieee.org/document/9781306
U6 - https://doi.org/10.1109/JPHOT.2022.3177354
SN - 1943-0655
VL - 14
IS - 3
SP - 1
EP - 8
ER -
TY - GEN
A1 - Steuer, Oliver
A1 - Schwarz, Daniel
A1 - Oehme, Michael
A1 - Schulze, J.
A1 - Maczko, H.
A1 - Kudrawiec, Robert
A1 - Fischer, Inga Anita
A1 - Heller, R.
A1 - Hübner, R.
A1 - Khan, M. M.
A1 - Georgiev, Yordan M.
A1 - Zhou, Shengqiang
A1 - Helm, M.
A1 - Prucnal, Slawomir
T1 - Band-gap and strain engineering in GeSn alloys using post-growth pulsed laser melting
T2 - Journal of Physics: Condensed Matter
Y1 - 2022
U6 - https://doi.org/10.1088/1361-648X/aca3ea
SN - 1361-648X
VL - 35
IS - 5
ER -
TY - GEN
A1 - Eisenhauer, Nico
A1 - Frank, Karin
A1 - Weigelt, Alexandra
A1 - Bartkowski, Bartosz
A1 - Beugnon, Rémy
A1 - Liebal, Katja
A1 - Mahecha, Miguel
A1 - Quaas, Martin
A1 - Al‐Halbouni, Djamil
A1 - Bastos, Ana
A1 - Bohn, Friedrich J.
A1 - Brito, Mariana Madruga de
A1 - Denzler, Joachim
A1 - Feilhauer, Hannes
A1 - Fischer, Rico
A1 - Fritsche, Immo
A1 - Guimaraes‐Steinicke, Claudia
A1 - Hänsel, Martin
A1 - Haun, Daniel B. M.
A1 - Herrmann, Hartmut
A1 - Huth, Andreas
A1 - Kalesse‐Los, Heike
A1 - Koetter, Michael
A1 - Kolleck, Nina
A1 - Krause, Melanie
A1 - Kretschmer, Marlene
A1 - Leitão, Pedro J.
A1 - Masson, Torsten
A1 - Mora, Karin
A1 - Müller, Birgit
A1 - Peng, Jian
A1 - Pöhlker, Mira L.
A1 - Ratzke, Leonie
A1 - Reichstein, Markus
A1 - Richter, Solveig
A1 - Rüger, Nadja
A1 - Sánchez‐Parra, Beatriz
A1 - Shadaydeh, Maha
A1 - Sippel, Sebastian
A1 - Tegen, Ina
A1 - Thrän, Daniela
A1 - Umlauft, Josefine
A1 - Wendisch, Manfred
A1 - Wolf, Kevin
A1 - Wirth, Christian
A1 - Zacher, Hannes
A1 - Zaehle, Sönke
A1 - Quaas, Johannes
T1 - A belowground perspective on the nexus between biodiversity change, climate change, and human well‐being
T2 - Journal of Sustainable Agriculture and Environment
N2 - Soil is central to the complex interplay among biodiversity, climate, and society. This paper examines the interconnectedness of soil biodiversity, climate change, and societal impacts, emphasizing the urgent need for integrated solutions. Human‐induced biodiversity loss and climate change intensify environmental degradation, threatening human well‐being. Soils, rich in biodiversity and vital for ecosystem function regulation, are highly vulnerable to these pressures, affecting nutrient cycling, soil fertility, and resilience. Soil also crucially regulates climate, influencing energy, water cycles, and carbon storage. Yet, climate change poses significant challenges to soil health and carbon dynamics, amplifying global warming. Integrated approaches are essential, including sustainable land management, policy interventions, technological innovations, and societal engagement. Practices like agroforestry and organic farming improve soil health and mitigate climate impacts. Effective policies and governance are crucial for promoting sustainable practices and soil conservation. Recent technologies aid in monitoring soil biodiversity and implementing sustainable land management. Societal engagement, through education and collective action, is vital for environmental stewardship. By prioritizing interdisciplinary research and addressing key frontiers, scientists can advance understanding of the soil biodiversity–climate change–society nexus, informing strategies for environmental sustainability and social equity.
Y1 - 2024
U6 - https://doi.org/10.1002/sae2.12108
SN - 2767-035X
VL - 3
IS - 2
PB - Wiley
ER -
TY - GEN
A1 - Weißhaupt, David
A1 - Funk, Hannes S.
A1 - Oehme, Michael
A1 - Bloos, Dominik
A1 - Berkmann, Fritz
A1 - Seidel, Lukas
A1 - Fischer, Inga Anita
A1 - Schulze, Jörg
T1 - High mobility Ge 2DHG based MODFETs for low-temperature applications
T2 - Semiconductor Science and Technology
Y1 - 2023
U6 - https://doi.org/10.1088/1361-6641/acb22f
SN - 1361-6641
VL - 38
IS - 3
ER -
TY - CHAP
A1 - Zaplata, Markus K.
A1 - Kollmann, Johannes
A1 - Ulrich, Werner
A1 - Winter, Susanne
A1 - Schaaf, Wolfgang
A1 - Elmer, Michael
A1 - Gerwin, Werner
A1 - Fischer, Anton
ED - Jeltsch, Florian
ED - Joshi, Jasmin
T1 - Cover balance or degree of autocorrelation? It is the same and integratively traces pattern formation during succession
T2 - GfÖ 43rd Annual Meeting, Building bridges in ecology, linking systems, scales and disciplines, September 9 to 13, 2013, Potsdam, Germany
N2 - It is widely acknowledged that increasing complexity is a key attribute of ecosystem genesis. This is particularly true for primary succession on homogeneous substrates. However, a mechanistic understanding of spatial colonisation and pattern formation during primary succession has not been achieved yet. Thus, we studied this topic for 7 years within an experimental catchment (6 ha) established in the post-mining landscape of eastern Germany. Equidistant permanent plots (120 plots à 25m²) allowed for autocorrelation analyses, and thus tracing the spatial development of species cover performance. For each species tested, the “cover balance” first increased due to colonization, while decreasing in the course of succession. Drawing a benefit from these temporal trends, we suggested cover balance levels revealed by autocorrelation analyses to best indicate well-defined phases in primary succession at spatial entities. Hence, with the help of this spatial approach, terrestrial succession can be understood now much better at the most general level of the hierarchy provided by Pickett et al. (1987). In accordance with these authors, at subordinated levels of the causal hierarchy differential species performance might get collectively explained by contributing processes or conditions, such as ecophysiological traits, life history strategies, competition and allelopathy of the occurring plant species. Further research is needed to understand their relative contributions to the pattern formation.
Y1 - 2013
UR - http://www.gfoe-2013.de/download/130905_GFOe_2013_Abstracts.small.pdf
SP - 228
EP - 229
ER -
TY - GEN
A1 - Schaaf, Wolfgang
A1 - Elmer, Michael
A1 - Fischer, Anton
A1 - Gerwin, Werner
A1 - Nenov, Rossen
A1 - Pretzsch, Hans
A1 - Seifert, Stefan
A1 - Winter, Susanne
A1 - Zaplata, Markus K.
T1 - Monitoring the formation of structures and patterns during initial development of an artificial catchment
T2 - Environmental Monitoring and Assessment
N2 - The objective of this paper is to present observations, results from monitoring measurements, and preliminary conclusions about the development of patterns and structures during the first 5 years of development of an artificial catchment starting from point zero. We discuss the high relevance of initial system traits and external events for the system development and draw conclusions for further research. These investigations as part of a Collaborative Research Center, aim to disentangle and understand the feedback mechanisms and interrelationships of processes and their co-development with spatial and temporal structures and patterns by studying an initial, probably less complex ecosystem. Therefore, intensive measurements were carried out in the catchment with regard to the development of surface structures, hydrological patterns, vegetation dynamics, water chemistry, and element budgets. During the first 5 years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover, and the unconsolidated sandy substrate. The transformation of the initial geosystem into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared with the more homogenous conditions at point zero. The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity, and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic, and abiotic compartments of the system. Long-term monitoring of initial ecosystems may provide important data and parameters on processes and the crucial role of spatial and temporal structures and patterns to solve these problems. Artificially created catchments could be a suitable tool to study these initial developments at the landscape scale under known, designed, and defined boundary conditions.
KW - ecosystem development
Y1 - 2013
U6 - https://doi.org/10.1007/s10661-012-2998-x
SN - 0167-6369
VL - Vol. 185
IS - 7
SP - 5965
EP - 5986
ER -
TY - GEN
A1 - Elmer, Michael
A1 - Bachmann, Ute
A1 - Gutsch, Martin
A1 - Schröder, Jens
A1 - Bäucker, Ernst
A1 - Lange, Mike
A1 - Clauder, Lothar
A1 - Bens, Oliver
A1 - Suckow, Felicitas
A1 - Kätzel, Ralf
A1 - Bues, Claus-Thomas
A1 - Frommhold, Heinz
A1 - Sonntag, Herbert
A1 - Fischer, Thomas
A1 - Hüttl, Reinhard F.
T1 - OakChain: Eichen-Kiefern-Mischbestände im Spannungsfeld von Klimawandel, Waldumbau und internationalem Holzmarkt
T2 - Forst und Holz
Y1 - 2009
SN - 0932-9315
VL - 64
IS - 7/8
SP - 26
EP - 29
ER -
TY - GEN
A1 - Schaaf, Wolfgang
A1 - Elmer, Michael
A1 - Fischer, Anton
A1 - Gerwin, Werner
A1 - Nenov, Rossen
A1 - Pretzsch, Hans
A1 - Zaplata, Markus K.
T1 - Feedbacks between vegetation, surface structures and hydrology during initial development of the artificial catchment 'Chicken Creek'
T2 - Procedia Environmental Sciences
N2 - Our investigations at the artificial catchment ´Chicken Creek´ in Lusatia/Germany aim to disentangle and understand the feedback mechanisms and interrelationships of processes and their co-development with spatial and temporal structures and patterns by studying this initial, probably less complex ecosystem. Intensive measurements were carried out in the catchment with regard to the development of surface structures, hydrological patterns, and vegetation dynamics.
During the first seven years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover and the unconsolidated sandy substrate.
The transformation of the initial geo-system into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared to the more homogenous conditions at point zero.
The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic and abiotic compartments of the system. Artificially created catchments could be a suitable tool to study these initial developments at the landscape scale under known, designed and defined boundary conditions.
Y1 - 2013
U6 - https://doi.org/10.1016/j.proenv.2013.06.010
SN - 1878-0296
VL - 19
SP - 86
EP - 95
ER -
TY - BOOK
A1 - Anders, Kenneth
A1 - Donat, Ralf
A1 - Durka, Walter
A1 - Elmer, Michael
A1 - Fischer, Lars
A1 - Gailing, Ludger
A1 - Hoffmann, Melanie
A1 - Hornemann, Gitte
A1 - Hüttl, Reinhard F.
A1 - Peschel, Tim
A1 - Rißmann, Cornelia
A1 - Röhring, Andreas
A1 - Siedschlag, Yvonne
A1 - Pilarski, Monika
A1 - Vetter, Andreas
A1 - Vorwald, Jörn
A1 - Wöllecke, Jens
A1 - Wiegleb, Gerhard
A1 - Xylander, Willi E. R.
ED - Anders, Kenneth
ED - Fischer, Lars
ED - Röhring, Andreas
ED - Peschel, Tim
ED - Donat, Ralf
T1 - Neulandschafft - Leben in den Schlabendorfer Feldern - Natur und Mensch : eine Publikation der Landschaftswerkstatt Schlabendorfer Felder im Rahmen des Forschungsverbundes SUBICON
Y1 - 2010
PB - Büro für Landschaftskommunikation
CY - Bad Freienwalde
ER -
TY - GEN
A1 - Winter, Susanne
A1 - Zaplata, Markus K.
A1 - Rzanny, Michael
A1 - Schaaf, Wolfgang
A1 - Fischer, Anton
A1 - Ulrich, Werner
T1 - Increasing ecological multifunctionality during early plant succession
T2 - Plant Ecology
N2 - Ecological multifunctionality quantifies the functional performance of various important plant traits and increases with growing structural habitat heterogeneity, number of plant functional traits, and species richness. However, the successional changes in multifunctionality have not been traced so far. We use quantitative plant samples of 1 m2 plots from the first 6 years of initial vegetation dynamics in a German created catchment to infer the temporal changes in plant functional trait space and multifunctionality. Multifunctionality at the plot level was in all study years lower than expected from a random sample of the local pool of potential colonizers and was lowest at intermediate states of succession. In each year species containing a specific set of traits occurred with limited but focused functionality. The observed average low degree of multifunctionality contrasts with recent models predicting a tendency towards maximum multifunctionality during plant community development. However, variability in multifunctionality among plots increased during succession and the respective multifunctionality distribution among plots was increasingly right skewed indicating an excess of plots with relatively high multifunctionality. This relative excess of plots with high multifunctionality might act as an important trigger of community development paving the way for new species and functions to become established.
Y1 - 2019
U6 - https://doi.org/10.1007/s11258-019-00930-3
SN - 1573-5052
VL - 220
IS - 4-5
SP - 499
EP - 509
ER -
TY - BOOK
A1 - Hoffmann, Melanie
A1 - Anders, Kenneth
A1 - Fischer, Lars
A1 - Böllmann, Jörg
A1 - Brückner, Ardo
A1 - Brunk, Ingo
A1 - Donath, Helmut
A1 - Donat, Ralf
A1 - Elmer, Michael
A1 - Güth, Mareike
A1 - Häußler, Robert
A1 - Mrzljak, Jadranka
A1 - Mudra, Dieter
A1 - Müller, Markus
A1 - Peschel, Tim
A1 - Pilz, Wilfried
A1 - Sawade, Wolfgang
A1 - Schonert, P.
A1 - Siedschlag, Marina
A1 - Siedschlag, Yvonne
A1 - Wanner, Manfred
A1 - Wöllecke, Jens
ED - Hoffmann, Melanie
ED - Anders, Kenneth
ED - Fischer, Lars
T1 - Kolonisten gesucht! Steckbriefe natürlicher und sozialer Besiedler der Bergbaufolgelandschaft Schlabendorfer Felder
Y1 - 2010
PB - Büro für Landschaftskommunikation
CY - Bad Freienwalde
ER -
TY - CHAP
A1 - Schaaf, Wolfgang
A1 - Elmer, Michael
A1 - Gerwin, Werner
A1 - Fischer, Anton
A1 - Zaplata, Markus K.
A1 - Nenov, Rossen
T1 - Feedbacks between structures and processes during initial ecosystem development in an artificial catchment
T2 - European Geosciences Union, General Assembly 2013, Vienna, Austria, 07 – 12 April 2013
N2 - We studied the role of strutures and processes and their feedbacks during initial ecosystem development in the artificial catchment Chicken Creek. During the first seven years, considerable changes within the catchment were observed. Both internal and external factors could be identified as driving forces for the formation of structures and patterns in the artificial catchment. Initial structures formed by the construction process and initial substrate
characteristics were decisive for the distribution and flow of water. External factors like episodic events triggered erosion and dissection during this initial phase, promoted by the low vegetation cover and the unconsolidated sandy substrate.
The transformation of the initial geo-system into areas with evolving terrestrial or aquatic characteristics and from a very episodic to a more permanent stream network and discharge, together with the observed vegetation dynamics increased site diversity and heterogeneity with respect to water and nutrient availability and transformation processes compared to the more homogenous conditions at point zero.
The processes and feedback mechanisms in the initial development of a new landscape may deviate in rates, intensity and dominance from those known from mature ecosystems. It is therefore crucial to understand these early phases of ecosystem development and to disentangle the increasingly complex interactions between the evolving terrestrial and aquatic, biotic and abiotic compartments of the system. Artificially created catchments could be a
suitable tool to study these initial developments at the landscape scale under known, designed and defined boundary conditions.
Y1 - 2013
UR - http://meetingorganizer.copernicus.org/EGU2013/EGU2013-6837.pdf
N1 - EGU2013-6837
PB - European Geophysical Society
CY - Katlenburg-Lindau
ER -
TY - CHAP
A1 - Bachmann, Ute
A1 - Bens, Oliver
A1 - Elmer, Michael
A1 - Fischer, Thomas
A1 - Raab, Thomas
A1 - Hüttl, Reinhard F.
ED - Elmer, Michael
ED - Kätzel, Ralf
ED - Bens, Oliver
ED - Bues, Claus-Thomas
ED - Sonntag, Herbert
ED - Hüttl, Reinhard F.
T1 - Boden und Standortqualität
T2 - Nachhaltige Bewirtschaftung von Eichen-Kiefern-Mischbeständen : im Spannungsfeld von Klimawandel, Waldumbau und internationalem Holzmarkt
Y1 - 2009
SN - 978-3-86581-196-7
SP - 31
EP - 44
PB - oekom
CY - München
ER -