@misc{TaokaCapelliniDrieschetal., author = {Taoka, Noriyuki and Capellini, Giovanni and Driesch, Nils von den and Buca, Dan and Zaumseil, Peter and Schubert, Markus Andreas and Klesse, Wolfgang Matthias and Montanari, Michele and Schr{\"o}der, Thomas}, title = {Sn Migration Control at High Temperature Due to High Deposition Speed for Forming High Quality GeSn Layer}, series = {Applied Physics Express}, volume = {9}, journal = {Applied Physics Express}, number = {3}, issn = {1882-0786}, doi = {10.7567/APEX.9.031201}, pages = {031201}, language = {en} } @misc{EwertSchmidtFlegeetal., author = {Ewert, Moritz and Schmidt, Thomas and Flege, Jan Ingo and Heidmann, Inga and Grzela, Tomasz and Klesse, Wolfgang Matthias and F{\"o}rster, M. and Aballe, Lucia and Schr{\"o}der, Thomas}, title = {Morphology and Chemical Composition of Co Germanide islands on Ge(001): in-situ nanoscale insights into contact formation for Ge-based device technology}, series = {Nanotechnology}, volume = {27}, journal = {Nanotechnology}, number = {32}, issn = {1361-6528}, pages = {325705}, language = {en} } @misc{SchlykowKlesseNiuetal., author = {Schlykow, Viktoria and Klesse, Wolfgang Matthias and Niu, Gang and Taoka, Noriyuki and Yamamoto, Yuji and Skibitzki, Oliver and Barget, M. R. and Zaumseil, Peter and K{\"a}nel, Hans von and Schubert, Markus Andreas and Capellini, Giovanni and Schroeder, Thomas}, title = {Selective growth of fully relaxed GeSn nano-islands by nanoheteroepitaxy on patterned Si(001)}, series = {Applied Physics Letters}, volume = {109}, journal = {Applied Physics Letters}, number = {20}, issn = {1077-3118}, doi = {10.1063/1.4967500}, pages = {202102}, language = {en} } @misc{NoatschkHofmannDabrowskietal., author = {Noatschk, Katharina and Hofmann, E. V. S. and Dabrowski, J. and Curson, N. J. and Schr{\"o}der, Thomas and Klesse, Wolfgang Matthias and Seibold, G{\"o}tz}, title = {Ge(001) surface reconstruction with Sn impurities}, series = {Surface Science}, volume = {713}, journal = {Surface Science}, doi = {10.1016/j.susc.2021.121912}, pages = {1 -- 8}, abstract = {Defects play an important role for surface reconstructions and therefore also influence the substrate growth. In this work we present a first principle calculation for the Ge(001) surface without and with tin impurities incorporated into the top surface layer. By mapping the system onto an Ising-type model, with interaction constants taken from density functional theory, the stability of the surface reconstructions under the influence of different concentrations of tin impurities is explored. This approach allows us to simulate the possible phase transitions for the different surface reconstructions including the local structure around the tin impurity atoms. In addition, we compare our theoretical results with experimental STM images on clean and Sn-doped Ge(100) surfaces.}, language = {en} }