Spin-orbit coupling and anomalous angular-dependent magnetoresistance in the quantum transport regime of PbS

Article

关键词: SINGLE DIRAC CONE;    OSCILLATORY MAGNETORESISTANCES;    TOPOLOGICAL-INSULATOR;    SURFACE;    BI2TE3;    PHASE;    PBTE;   

DOI  :  10.1103/PhysRevB.81.161202

来源: SCIE

【 摘 要 】

We measured magnetotransport properties of PbS single crystals which exhibit the quantum linear magnetoresistance (MR) as well as the static skin effect that creates a surface layer of additional conductivity. The Shubnikov-de Haas oscillations in the longitudinal MR signify the peculiar role of spin-orbit coupling. In the angular-dependent MR, sharp peaks are observed when the magnetic field is slightly inclined from the longitudinal configuration, which is totally unexpected for a system with nearly spherical Fermi surface and points to an intricate interplay between the spin-orbit coupling and the conducting surface layer in the quantum transport regime.

【 授权许可】

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