Generation and detection of spin current in the three-terminal quantum dot

被引：6

作者：

Lue, Rong ^{[1
]}

Lu, Hai-Zhou ^{[2
]}

Dai, Xi ^{[3
]}

Hu, Jiangping ^{[4
]}

机构：

[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[2] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

[4] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 49期

关键词：

SIDE-JUMP MECHANISM; ELECTRON-SPIN; SUPERCURRENT;

D O I：

10.1088/0953-8984/21/49/495304

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We propose a novel device composed of a quantum dot tunneling coupled to ferromagnetic, superconducting, and normal-metal leads. This device can generate, manipulate, and detect pure spin current through the interplay between the spin-polarized quantum transport and the Andreev reflection. The spin current in this device is a well-defined conserved current since there is no need for any spin-orbit coupling. The proposed device is realizable using present nanotechnology.

引用

页数：5

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