Localization effects in 3D Dirac antiperovskite thin films

Hiroyuki Nakamura; Johannes Merz; Eslam Khalaf; Pavel Ostrovsky; Debakanta Samal; Hidenori Takagi

Localization effects in 3D Dirac antiperovskite thin films

ORAL

Abstract

We report localization effects in the low temperature magnetotransport of 3D Dirac materials Sr₃PbO and Sr₃SnO. Robust weak antilocalization was observed for Sr₃SnO, whereas weak localization was dominant for Sr₃PbO. The sign change of quantum interference part of the magnetoconductance is related to the position of the Fermi energy with respect to the Dirac nodes, pointing to the role of Berry curvature. Detailed properties of Dirac electrons derived by localization analysis will be discussed.

March 6, 2018, 10:36 AM – March 6, 2018, 10:48 AM

Presenters

Hiroyuki Nakamura
- Max Planck Institute for Solid State Research

Authors

Hiroyuki Nakamura
- Max Planck Institute for Solid State Research
Johannes Merz
- Max Planck Institute for Solid State Research
Eslam Khalaf
- Max Planck Institute for Solid State Research
Pavel Ostrovsky
- Max Planck Institute for Solid State Research
Debakanta Samal
- Institute of Physics
Hidenori Takagi
- University of Tokyo
- Max Planck Institute for Solid State Research