Spin-dependent transport in a quasiballistic wire

被引：0

作者：

Liang, CT ^{[1
]}

Pepper, M ^{[1
]}

Simmons, MY ^{[1
]}

Smith, CG ^{[1
]}

Kim, GH ^{[1
]}

Ritchie, DA ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II | 2001年 / 87卷

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe the transport properties of a 5 mum long one-dimensional (1D) quantum wire. In an in-plane magnetic field B-parallel to, we observe spin-splitting of 1D conductance steps. Our results provide evidence that deviation from conductance quantisation is very small for electrons with spin parallel and is about 1/3 for electrons with spin anti-parallel. Moreover, in a high B-parallel to, a spin-polarised 1D channel shows a plateau-like structure close to 0.3 x 2e(2)/h which strengthens with increasing temperature. It is suggested that these results arise from the combination of disorder and the electron-electron interactions in the 1D electron gas.

引用

页码：1041 / 1042

页数：2

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