Current-Controlled Spin Precession of Quasistationary Electrons in a Cubic Spin-Orbit Field

被引：32

作者：

Altmann, P. ^{[1
]}

Hernandez, F. G. G. ^{[2
]}

Ferreira, G. J. ^{[3
]}

Kohda, M. ^{[4
]}

Reichl, C. ^{[5
]}

Wegscheider, W. ^{[5
]}

Salis, G. ^{[1
]}

机构：

[1] IBM Res Zurich, Saumerstr 4, CH-8803 Ruschlikon, Switzerland

[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, Brazil

[3] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil

[4] Tohoku Univ, Dept Mat Sci, Aoba Ku, 6-6-02 Aramaki Aza Aoba, Sendai, Miyagi 9808579, Japan

[5] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 19期

基金：

瑞士国家科学基金会; 巴西圣保罗研究基金会;

关键词：

QUANTUM-WELL; SPINTRONICS; RELAXATION; CHANNELS; DEVICE;

D O I：

10.1103/PhysRevLett.116.196802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Space- and time-resolved measurements of spin drift and diffusion are performed on a GaAs-hosted two-dimensional electron gas. For spins where forward drift is compensated by backward diffusion, we find a precession frequency in the absence of an external magnetic field. The frequency depends linearly on the drift velocity and is explained by the cubic Dresselhaus spin-orbit interaction, for which drift leads to a spin precession angle twice that of spins that diffuse the same distance.

引用

页数：5

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