Nature of the Dirac gap modulation and surface magnetic interaction in axion antiferromagnetic topological insulator MnBiTe

Shikin, A. M.*; Estyunin, D. A.*; Klimovskikh, I. I.*; Filnov, S. O.*; Kumar, S.*; Schwier, E. F.*; Miyamoto, Koji*; Okuda, Taichi*; Kimura, Akio*; Kuroda, Kenta*; et al.

Scientific Reports (Internet), 10, p.13226_1 - 13226_13, 2020/08

https://doi.org/10.1038/s41598-020-70089-9

Origin of spin-orbit splitting for monolayers of Au and Ag on W(110) and Mo(110)

Shikin, A. M.*; Varykhalov, A.*; Prudnikova, G. V.*; Usachov, D.*; Adamchuk, V. K.*; Yamada, Yoichi; Riley, J. D.*; Rader, O.*

Physical Review Letters, 100(5), p.057601_1 - 057601_4, 2008/02

https://doi.org/10.1103/PhysRevLett.100.057601

Spin-orbit coupling can give rise to spin-split electronic states without a ferromagnet or an external magnetic field. We create large spin-orbit splittings in a Au and Ag monolayer on W(110) and show that the size of the splitting does not depend on the atomic number of the Au or Ag overlayer but of the Wsubstrate. Spin- and angle-resolved photoemission and Fermi-surface scans reveal that the overlayer statesacquire spin polarization through spin-dependent overlayer-substrate hybridization.