Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 7: Topological Semimetals I
TT 7.10: Vortrag
Montag, 12. März 2018, 12:00–12:15, A 053
Quantum interference effects in 3D-Dirac antiperovskites — •Hiroyuki Nakamura1, Johannes Merz1, Eslam Khalaf1, Pavel Ostrovsky1, Debakanta Samal3, and Hidenori Takagi1,2,4 — 1Max Planck Institute for Solid State Research, Germany — 2Department of Physics, University of Tokyo, Japan — 3Institute of Physics, India — 4Institute for Functional Matter and Quantum Technologies, University of Stuttgart, Germany
Magnetotrasport study has been carried out using epitaxial thin films of Sr3PbO and Sr3SnO grown by MBE. All the films showed clear 3D localization but differed in the sign of quantum interference governing the localization effect, which was associated with the location of EF with respect to Dirac nodes. Detailed analysis of the localization effects for Dirac electrons will be presented.