Magnetic quantum oscillations for the surface states of topological insulator Bi2Se3
Magnetic quantum oscillations for the surface states of topological insulator Bi2Se3
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DOI：
10.1103/physrevb.82.085429
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发表时间：
2010-06
影响因子：
3.7
通讯作者：
Zhigang Wang;Z. Fu;Shuangxi Wang;Ping Zhang
中科院分区：
文献类型：
--
作者：
Zhigang Wang;Z. Fu;Shuangxi Wang;Ping Zhang
We study quantum oscillations of the magnetization in Bi2Se3 (111) surface system in the presence of a perpendicular magnetic field. The combined spin-chiral Dirac cone and Landau quantization produce profound effects on the magnetization properties that are fundamentally different from those in the conventional semiconductor two-dimensional electron gas. In particular, we show that the oscillating center in the magnetization chooses to pick up positive or negative values depending on whether the zero-mode Landau level is occupied or empty. An intuitive analysis of these features is given and the subsequent effects on the magnetic susceptibility and Hall conductance are also discussed.
