Spin filtering by a periodic spintronic device

被引：48

作者：

Aharony, Amnon ^{[1
,2
,5
]}

Entin-Wohlman, Ora ^{[1
,2
,5
]}

Tokura, Yasuhiro ^{[3
]}

Katsumoto, Shingo ^{[4
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Ilse Katz Ctr Meso & Nanoscale Sci & Technol, IL-84105 Beer Sheva, Israel

[3] NTT Corp, NTT, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

[4] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[5] Tel Aviv Univ, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.78.125328

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For a linear chain of diamondlike elements, we show that the Rashba spin-orbit interaction (which can be tuned by a perpendicular gate voltage) and the Aharonov-Bohm flux (due to a perpendicular magnetic field) can combine to select only one propagating ballistic mode, for which the electronic spins are fully polarized along a direction that can be controlled by the electric and magnetic fields and by the electron energy. All the other modes are evanescent. For a wide range of parameters, this chain can serve as a spin filter.

引用

页数：5

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