Detection of spin polarization in a quantum wire

被引：1

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：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 04期

关键词：

Quantum dot; Quantum wire; Spin polarization; EXCITED-STATE SPECTROSCOPY; SPINTRONICS; DOT;

D O I：

10.1016/j.physe.2009.10.034

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We demonstrate detection of spin polarization in a quantum wire utilizing a side coupled quantum dot. By applying in-plane magnetic fields, spin split conducting channels are formed and produce spin polarization in the wire. The magnetic fields also create Zeeman split spin levels in the dot and these states are used as a spin polarization detector. Such kind of spin polarization detection with a side coupled quantum dot will operate even in the zero magnetic field by using two-electron singlet and triplet levels. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：809 / 812

页数：4

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