Detection of spin polarization with a side-coupled quantum dot

被引：15

作者：

Otsuka, Tomohiro ^{[1
]}

Abe, Eisuke ^{[1
]}

Iye, Yasuhiro ^{[1
]}

Katsumoto, Shingo ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 19期

关键词：

electron spin polarisation; magnetic fields; quantum dots; QUANTIZED CONDUCTANCE; POINT CONTACTS; SPINTRONICS;

D O I：

10.1103/PhysRevB.79.195313

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose realistic methods to detect local spin polarization, which utilize a quantum dot side coupled to the target system. By choosing appropriate states in the dot, we can put spin selectivity to the dot and detect spins in the target with small disturbance. We also present an experiment which realizes one of the proposed spin-detection schemes in magnetic fields.

引用

页数：5

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