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Berlin 2012 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 2: Superconductivity: Fe-based Superconductors - 1111, LiFeAs & As-free Pnictides

Montag, 26. März 2012, 09:30–13:00, H 2053

09:30 TT 2.1 NMR evidence for spin fluctuations in underdoped LaO1−xFxFeAs — •Franziska Hammerath, Hans-Joachim Grafe, Guillaume Lang, Dalibor Paar, Günter Behr, Jochen Werner, and Bernd Büchner
09:45 TT 2.2 75As NQR investigations of charge inhomogeneities in CeFe1−xCoxAsO — •Eva Maria Brüning, Guillaume Lang, Hans-Joachim Grafe, Louis Veyrat, Sabine Wurmehl, and Bernd Büchner
10:00 TT 2.3 Physics of defect induced local moments in pnictide superconductors — •Vadim Grinenko, Stefan-Ludwig Drechsler, Konstatin Kikoin, Mahmoud Abdel-Hafiez, Saicharan Aswartham, Anja Wolter-Giraud, Christian Hess, Manoj Kumar, Sabine Wurmehl, Guenter Fuchs, Konstantin Nenkov, Franziska Hammerath, Guillaume Lang, Hans-Joachim Grafe, Bernhard Holzapfel, Jeroen van den Brink, Bernd Buechner, and Ludwig Schultz
10:15 TT 2.4 Critical current scaling and anisotropy in oxypnictide superconductorsMartin Kidszun, Jens Hänisch, Bernhard Holzapfel, Tom Thersleff, and •Silvia Haindl
10:30 TT 2.5 Effects of correlation in LiFeAs — •Johannes Ferber, Kateryna Foyevtsova, Roser Valenti, and Harald 0. Jeschke
10:45 TT 2.6 Spin fluctuations in the FeAs-based superconductors — •N. Qureshi, Y. Sidis, S. Wurmehl, I. Morozov, S. Aswartham, L. Harnagea, C. Nacke, B. Büchner, P. Steffens, and M. Braden
11:00 TT 2.7 Anisotropic Energy-Gaps of Iron-Based Superconductivity from Intra-Band Quasiparticle Interference in LiFeAs — •A.W. Rost, M.P. Allan, A.P. Mackenzie, Y. Xie, J.C. Davis, K. Kihou, C.-H. Lee, A. Iyo, H. Eisaki, and T.-M. Chuang
11:30 TT 2.8 Defect dependent influence on the superconducting gap of LiFeAs — •Danny Baumann, Torben Hänke, Ronny Schlegel, Sabine Wurmehl, Rico Pohle, Martha Scheffler, Luminita Harnagea, Christian Hess, and Bernd Büchner
11:45 TT 2.9 Temperature dependency of the superconducting gap in LiFeAs probed by STM — •Martha Scheffler, Rico Pohle, Torben Hänke, Ronny Schlegel, Danny Baumann, Steffen Sykora, Luminita Harnagea, Sabine Wurmehl, Christian Hess, Jeroen van den Brink, and Bernd Büchner
12:00 TT 2.10 Electronic Transport Properties of LiFeAs in comparision to Ni-doped and Li-deficient LiFeAs — •Dirk Bombor, Anne Bachmann, Luminita Harnagea, Claudia Nacke, Saicharan Aswaratham, Sabine Wurmehl, Christian Hess, and Bernd Büchner
12:15 TT 2.11 Ferromagnetic resonance in Li1−δFe1−xNixAs single crystals — •A. Alfonsov, V. Kataev, C. Nacke, S. Aswartham, L. Harnagea, S. Wurmehl, A. U. B. Wolter, and B. Büchner
12:30 TT 2.12 As-free pnictide LaNi1−xSb2 thin films grown by Reactive Molecular Beam Epitaxy — •Reiner Retzlaff, Alexander Buckow, Jose Kurian, and Lambert Alff
12:45 TT 2.13 Synthesis of As-free pnictide superconductors RENi1−xBi2 (RE= La, Ce) using Molecular Beam Epitaxy — •Alexander Buckow, Reiner Retzlaff, Jose Kurian, and Lambert Alff
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