Hysteretic dynamic nuclear polarization in GaAs/AlxGa1-xAs(110) quantum wells -: art. no. 241303

被引：15

作者：

Sanada, H

Matsuzaka, S

Morita, K

Hu, CY

Ohno, Y

Ohno, H

机构：

[1] Tohoku Univ, Elect Commun Res Inst, Lab Elect Intelligent Syst, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Japan Sci & Technol Corp, ERATO, Semicond Spintron Project, Tokyo, Japan

[3] Japan Sci & Technol Corp, CREST, Tokyo, Japan

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.68.241303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the dynamics of a coupled electron-nuclear spin system in a GaAs/AlGaAs (110) quantum well by time-resolved Faraday rotation measurements. Photoexcited electron spins with long coherence time (T-2(*)=6 ns) are strongly subject to a nuclear field as well as polarizing the nuclei. A hysteretic behavior was observed in the magnetic-field dependence of the nuclear polarization under optical orientation. Our quantitative analysis based on self-consistent calculations reproduced the experimental observation of the bistable configurations of dynamic nuclear polarization.

引用

页数：4

共 20 条

[1]

[Anonymous], SEMICONDUCTOR SPINTR

[2] Nuclear spectroscopy in single quantum dots: Nanoscopic Raman scattering and nuclear magnetic resonance [J].