The gigantic Rashba effect of surface states energetically buried in the topological insulator Bi2Te2Se

被引：10

作者：

Miyamoto, K. ^{[1
]}

Okuda, T. ^{[1
]}

Nurmamat, M. ^{[2
]}

Nakatake, M. ^{[1
]}

Namatame, H. ^{[1
]}

Taniguchi, M. ^{[1
,2
]}

Chulkov, E. V. ^{[3
,4
,5
,6
]}

Kokh, K. A. ^{[7
,8
]}

Tereshchenko, O. E. ^{[9
]}

Kimura, A. ^{[2
]}

机构：

[1] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7390046, Japan

[2] Hiroshima Univ, Grad Sch Sci, Higashihiroshima 7398526, Japan

[3] Ctr Fis Mat CFM MPC, Dept Fis Mat UPV EHU, San Sebastian 20080, Basque Country, Spain

[4] Ctr Mixto CSIC UPV EHU, San Sebastian 20080, Basque Country, Spain

[5] Donostia Int Phys Ctr, San Sebastian 20018, Basque Country, Spain

[6] Tomsk State Univ, Tomsk 634050, Russia

[7] Russian Acad Sci, VS Sobolev Inst Geol & Mineral, Siberian Branch, Novosibirsk 630090, Russia

[8] Novosibirsk State Univ, Novosibirsk 630090, Russia

[9] Russian Acad Sci, Siberian Branch, Inst Semicond Phys, Novosibirsk 630090, Russia

来源：

NEW JOURNAL OF PHYSICS | 2014年 / 16卷

关键词：

gigantic Rashba effect; spin-ARPES; topologial insulator; DIRAC CONE; SPIN;

D O I：

10.1088/1367-2630/16/6/065016

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have clarified that a topological insulator, Bi2Te2Se, shows two surface states with gigantic Rashba-type spin-splitting located at a binding energy deeper than the topological surface state. The magnitude of the Rashba parameter, as well as the momentum splitting, is found to be large enough to realize a number of nanometer-sized spintronic devices. This novel finding paves the way to studies of gigantic Rashba systems that are suitable for future spintronic applications.

引用

页数：10

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