@misc{HeinrichBalanzateguiBensetal., author = {Heinrich, Ingo and Balanzategui, Daniel and Bens, Oliver and Blasch, Gerald and Blume, Theresa and B{\"o}ttcher, Falk and Borg, Erik and Brademann, Brian and Brauer, Achim and Conrad, Christopher and Dietze, Elisabeth and Dr{\"a}ger, Nadine and Fiener, Peter and Gerke, Horst H. and G{\"u}ntner, Andreas and Heine, Iris and Helle, Gerhard and Herbrich, Marcus and Harfenmeister, Katharina and Heußner, Karl-Uwe and Hohmann, Christian and Itzerott, Sibylle and Jurasinski, Gerald and Kaiser, Knut and Kappler, Christoph and Koebsch, Franziska and Liebner, Susanne and Lischeid, Gunnar and Merz, Bruno and Missling, Klaus Dieter and Morgner, Markus and Pinkerneil, Sylvia and Plessen, Birgit and Raab, Thomas and Ruhtz, Thomas and Sachs, Torsten and Sommer, Michael and Spengler, Daniel and Stender, Vivien and St{\"u}ve, Peter and Wilken, Florian}, title = {Interdisciplinary Geo-ecological Research across Time Scales in the Northeast German Lowland Observatory (TERENO-NE)}, series = {Vadose Zone Journal}, volume = {17}, journal = {Vadose Zone Journal}, number = {1}, issn = {1539-1663}, doi = {10.2136/vzj2018.06.0116}, pages = {1 -- 25}, language = {en} } @inproceedings{KapplerKaiserKuesteretal., author = {Kappler, Christoph and Kaiser, Knut and K{\"u}ster, Mathias and F{\"u}lling, Alexander and Bens, Oliver and Raab, Thomas}, title = {Evaluating the timing of late Quaternary geomorphodynamics and soil formation: a review of geochronological data from northeastern Germany}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{ZeugnerKaiserSchmidtetal., author = {Zeugner, Alexander and Kaiser, Martin and Schmidt, Peer and Menshchikova, Tatiana V. and Rusinov, Igor P. and Markelov, Anton V. and Van den Broek, Wouter and Chulkov, Evgueni V. and Doert, Thomas and Ruck, Michael and Isaeva, Anna}, title = {Modular Design with 2D Topological-Insulator Building Blocks: Optimized Synthesis and Crystal Growth and Crystal and Electronic Structures of BiₓTeI (x = 2, 3)}, series = {Chemistry of Materials}, volume = {29}, journal = {Chemistry of Materials}, number = {3}, issn = {0897-4756}, doi = {10.1021/acs.chemmater.6b05038}, pages = {1321 -- 1337}, abstract = {Structural engineering of topological bulk materials is systematically explored with regard to the incorporation of the buckled bismuth layer [Bi₂], which is a 2D topological insulator per se, into the layered BiTeI host structure. The previously known bismuth telluride iodides, BiTeI and Bi₂TeI, offer physical properties relevant for spintronics. Herewith a new cousin, Bi₃TeI (sp.gr. R3m, a = 440.12(2) pm, c = 3223.1(2) pm), joins the ranks and expands this structural family. Bi₃TeI = [Bi₂][BiTeI] represents a stack with strictly alternating building blocks. Conditions for reproducible synthesis and crystal-growth of Bi₂TeI and Bi₃TeI are ascertained, thus yielding platelet-like crystals on the millimeter size scale and enabling direct measurements. The crystal structures of Bi₂TeI and Bi₃TeI are examined by X-ray diffraction and electron microscopy. DFT calculations predict metallic properties of Bi₃TeI and an unconventional surface state residing on various surface terminations. This state emerges as a result of complex hybridization of atomic states due to their strong intermixing. Our study does not support the existence of new stacking variants BiₓTeI with x > 3; instead, it indicates a possible homogeneity range of Bi₃TeI. The series BiTeI-Bi₂TeI-Bi₃TeI illustrates the influence of structural modifications on topological properties.}, language = {en} } @misc{KniesKaiserLeAnhetal., author = {Knies, Maximilian and Kaiser, Martin and L{\^e} Anh, Mai and Efimova, Anastasia and Doert, Thomas and Ruck, Michael}, title = {Low-Temperature Ordering in the Cluster Compound (Bi₈)Tl[AlCl₄]₃}, series = {Inorganics}, volume = {7}, journal = {Inorganics}, number = {4}, doi = {10.3390/inorganics7040045}, pages = {1 -- 9}, abstract = {The reaction of Bi, BiCl₃, and TlCl in the ionic liquid [BMIm]Cl·4AlCl₃ (BMIm = 1-n-butyl-3-methylimidazolium) at 180 °C yielded air-sensitive black crystals of (Bi₈)Tl[AlCl₄]₃. X-ray diffraction on single crystals at room temperature revealed a structure containing [Tl(AlCl₄)₃]∞12- strands separated by isolated Bi₈²⁺ square antiprisms. The thallium(I) ion is coordinated by twelve Cl⁻ ions of six [AlCl₄]⁻ groups, resulting in a chain of face-sharing [TlCl₁₂]¹¹⁻ icosahedra. The Bi₈²⁺ polycation is disordered, simulating a threefold axis through its center and overall hexagonal symmetry (space group P6₃/m). Slowly cooling the crystals to 170 K resulted in increased order in the Bi₈ cluster orientations. An ordered structure model in a supercell with a' = 2a, b' = 2b, c' = 3c and the space group P6₅ was refined. The structure resembles a hexagonal perovskite, with complex groups in place of simple ions.}, language = {en} } @misc{DelaCadenaKaiserMitsevaetal., author = {De la Cadena, Wladimir and Kaiser, Daniel and Mitseva, Asya and Panchenko, Andriy and Engel, Thomas}, title = {Analysis of Multi-path Onion Routing-based Anonymization Networks}, series = {Data and Applications Security and Privacy XXXIII : 33rd Annual IFIP WG 11.3 Conference, DBSec 2019, Charleston, SC, USA, July 15-17, 2019, Proceedings}, journal = {Data and Applications Security and Privacy XXXIII : 33rd Annual IFIP WG 11.3 Conference, DBSec 2019, Charleston, SC, USA, July 15-17, 2019, Proceedings}, editor = {Foley, Simon N.}, publisher = {Springer}, address = {Frankfurt am Main}, isbn = {978-3-030-22478-3}, issn = {0302-9743}, doi = {10.1007/978-3-030-22479-0_13}, pages = {240 -- 258}, language = {en} } @misc{DelaCadenaKaiserPanchenkoetal., author = {De la Cadena, Wladimir and Kaiser, Daniel and Panchenko, Andriy and Engel, Thomas}, title = {Out-of-the-box Multipath TCP as a Tor Transport Protocol: Performance and Privacy Implications}, series = {2020 IEEE 19th International Symposium on Network Computing and Applications (NCA), 24-27 Nov. 2020, Cambridge, MA, USA}, journal = {2020 IEEE 19th International Symposium on Network Computing and Applications (NCA), 24-27 Nov. 2020, Cambridge, MA, USA}, isbn = {978-1-7281-8326-8}, issn = {2643-7929}, doi = {10.1109/NCA51143.2020.9306702}, pages = {6}, language = {en} } @misc{ZundelDangelHaepkeetal., author = {Zundel, Stefan and Dangel, Daniel R. and H{\"a}pke, Ulrich and Kaiser, David Brian and Liese, Manja and Macholz, Rainer and Sondermann, Wolf Dieter and Strauß, Christian and Sures, Bernd and Terytze, Konstantin and Vogel, Ines and Weith, Thomas and Worzyk, Florian}, title = {Altlastenmanagement und Fl{\"a}chenrecycling: Bausteine f{\"u}r ein nachhaltiges Landmanagement}, series = {Altlasten Spektrum}, volume = {23}, journal = {Altlasten Spektrum}, number = {1}, issn = {0942-3818}, pages = {15 -- 21}, language = {de} } @misc{DirkmannKaiserWengeretal., author = {Dirkmann, Sven and Kaiser, Jan and Wenger, Christian and Mussenbrock, Thomas}, title = {Filament Growth and Resistive Switching in Hafnium Oxide Memristive Devices}, series = {Plasma Sources Science and Technology}, volume = {10}, journal = {Plasma Sources Science and Technology}, number = {17}, issn = {1361-6595}, doi = {10.1021/acsami.7b19836}, pages = {14857 -- 14868}, language = {en} } @misc{KapplerKaiserKuesteretal., author = {Kappler, Christoph and Kaiser, Knut and K{\"u}ster, Mathias and Nicolay, Alexander and F{\"u}lling, Alexander and Bens, Oliver and Raab, Thomas}, title = {Late Pleistocene and Holocene terrestrial geomorphodynamics and soil formation in northeastern Germany: a review of geochronological data}, series = {Physical geography}, volume = {40}, journal = {Physical geography}, number = {5}, issn = {1930-0557}, doi = {10.1080/02723646.2019.1573621}, pages = {405 -- 432}, abstract = {This study is based on 616 geochronological ages from aeolian and colluvial sediments as well as paleosols, representing the largest database of geochronological data from northeastern Germany available to date. Cumulative probability density functions for radiocarbon data and kernel density estimates for luminescence data were created covering the last 15 ka. The data analysis aimed at the identification of changes and their drivers in geomorphodynamics and soil formation. The ages representing aeolian activity cluster in the Late Glacial, the Early Holocene, and the Late Holocene, where the first two clusters are assumed to result mostly from climatic impact with only a minor share of human impact triggering the mobilization of aeolian sediments. The third cluster is considered to result mainly from human impact. The Late Glacial to Early Holocene activity phase is interrupted by a phase of surface stability around 11.5-12.7 ka, which is indicated by the occurrence of initial soil formations of Finow and Usselo types. Colluvial sedimentation predominantly occurred during the last 7 ka and clearly accelerated since the last 1000 a. According to the ages of specific paleosol types, related soilforming processes started already in the Late Glacial and were completed in the Holocene.}, language = {en} } @inproceedings{AbouzeidLopacinskiGrassetal., author = {Abouzeid, Mohamed S. and Lopacinski, Lukasz and Grass, Eckhard and Kaiser, Thomas and Kraemer, Rolf}, title = {Efficient and Low-Complexity Space Time Code for Massive MIMO RFID Systems}, series = {Iberian Conference on Information Systems and Technologies (CISTI 2017), Lisbon, 2017}, booktitle = {Iberian Conference on Information Systems and Technologies (CISTI 2017), Lisbon, 2017}, publisher = {IEEE}, address = {Piscataway, NJ}, pages = {6}, language = {en} } @inproceedings{AbouzeidZhengGutierrezetal., author = {Abouzeid, Mohamed S. and Zheng, Feng and Gutierrez, Jesus and Kaiser, Thomas and Kraemer, Rolf}, title = {A Novel Beamforming Algorithm for Massive MIMO Chipless RFID Systems}, series = {Wireless Telecommunications Symposium (WTS), 26-28 April 2017, Chicago}, booktitle = {Wireless Telecommunications Symposium (WTS), 26-28 April 2017, Chicago}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-3599-1}, pages = {6}, language = {en} } @inproceedings{KapplerKaiserGanzenmuelleretal., author = {Kappler, Christoph and Kaiser, Knut and Ganzenm{\"u}ller, Raphael and K{\"u}ster, Mathias and Nicolay, Alexander and F{\"u}lling, Alexander and Bens, Oliver and Raab, Thomas}, title = {A review of geochronological data from northeastern Germany: evaluating late Quaternary soil formation and land surface dynamics}, series = {3rd Annual ICLEA Workshop 2014, Dynamics of Climate and Landscape Evolution of Cultural Landscapes in the Northern Central European Lowlands since the Last Ice Age}, booktitle = {3rd Annual ICLEA Workshop 2014, Dynamics of Climate and Landscape Evolution of Cultural Landscapes in the Northern Central European Lowlands since the Last Ice Age}, editor = {Schwab, Markus J. and Theuerkauf, Martin and Brauer, Achim and Wilmking, Martin and Lampe, Reinhard}, publisher = {GFZ German Research Centre for Geosciences}, address = {Potsdam}, doi = {10.2312/GFZ.b103-14028}, pages = {43}, language = {en} } @misc{KaiserGrashoffDrabeetal., author = {Kaiser, Bert and Grashoff, Thomas and Drabe, Christian and Conrad, Holger and Schenk, Harald}, title = {About stress in filled DRIE-trenches}, series = {Journal of Micromechanics and Microengineering (JMM)}, volume = {25}, journal = {Journal of Micromechanics and Microengineering (JMM)}, number = {8}, issn = {0960-1317}, pages = {8085003}, language = {en} }