著者

長谷川 修司 平原 徹

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.32, no.4, pp.216-225, 2011-04-10 (Released:2011-04-19)

参考文献数

44

被引用文献数

2 1

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By comparing topologically trivial materials (Au, Bi, graphene) and topological insulators (Bi1-xSbx, Bi2Se3), we discuss what the features unique to topological surface states are. The properties reported so far for topological insulators are all explained by Rashba effect due to strong spin-orbit interaction and break down of space-inversion symmetry at surfaces. Topological arguments are not needed. Spin-split surface states with spin-texture Fermi surfaces, however, are very attractive play grounds for exploring spin-flow physics.