Landau level spin diode in a GaAs two dimensional hole system

被引：4
|
作者：
Klochan, O. [1 ]
Hamilton, A. R. [1 ]
das Gupta, K. [2 ,3 ]
Sfigakis, F. [2 ]
Beere, H. E. [2 ]
Ritchie, D. A. [2 ]
机构：
[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[3] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India
来源：
NEW JOURNAL OF PHYSICS | 2015年 / 17卷
基金：
英国工程与自然科学研究理事会; 澳大利亚研究理事会;
关键词：
two-dimensional hole system; Landau level spin diode; hole-nuclear spin coupling; DYNAMIC NUCLEAR-POLARIZATION; QUANTUM POINT CONTACTS; ELECTRON-GAS; EDGE; DOTS;
D O I：
10.1088/1367-2630/17/3/033035
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have fabricated and characterized a Landau level spin diode in a GaAs two-dimensional hole system. We used the spin diode to probe the hyperfine coupling between hole and nuclear spins and found no detectable net nuclear spin polarization, indicating that hole-nuclear spin flip-flop processes are suppressed by at least factor of 50 compared to GaAs electron systems.
引用
收藏
页码：1 / 6
页数：6
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