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
相关论文
共 50 条
  • [31] Hole spin dynamics and valence-band spin excitations in two-dimensional hole systems
    Korn, T.
    Schueller, C.
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2014, 251 (09): : 1881 - 1891
  • [32] Computational study on the ground state of a dopant hole in a two-dimensional quantum spin system
    Hamada, T
    Ishida, K
    Kamimura, H
    Suwa, Y
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2001, 70 (07) : 2033 - 2037
  • [33] Numerical study of spin Hall transport in a two-dimensional hole-gas system
    Chen, WQ
    Weng, ZY
    Sheng, DN
    PHYSICAL REVIEW B, 2005, 72 (23):
  • [34] Microwave photoresponse in the two-dimensional electron system caused by intra-Landau-level transitions
    Dorozhkin, SI
    Smet, JH
    Umansky, V
    von Klitzing, K
    PHYSICAL REVIEW B, 2005, 71 (20):
  • [35] Spin susceptibility of a two-dimensional electron system in GaAs towards the weak interaction region
    Tan, YW
    Zhu, J
    Stormer, HL
    Pfeiffer, LN
    Baldwin, KW
    West, KW
    PHYSICAL REVIEW B, 2006, 73 (04):
  • [36] Landau-level spectroscopy of a two-dimensional electron system by tunneling through a quantum dot
    Main, PC
    Thornton, ASG
    Hill, RJA
    Stoddart, ST
    Ihn, T
    Eaves, L
    Benedict, KA
    Henini, M
    PHYSICAL REVIEW LETTERS, 2000, 84 (04) : 729 - 732
  • [37] Spin-orbit splitting and effective masses in p-type GaAs two-dimensional hole gases
    Nichele, Fabrizio
    Pal, Atindra Nath
    Winkler, Roland
    Gerl, Christian
    Wegscheider, Werner
    Ihn, Thomas
    Ensslin, Klaus
    PHYSICAL REVIEW B, 2014, 89 (08)
  • [38] Cyclotron resonance at microwave frequencies in two-dimensional hole system in AlGaAs/GaAs quantum wells
    Pan, W
    Lai, K
    Bayrakci, SP
    Ong, NP
    Tsui, DC
    Pfeiffer, LN
    West, KW
    APPLIED PHYSICS LETTERS, 2003, 83 (17) : 3519 - 3521
  • [39] High-quality quantum point contact in two-dimensional GaAs (311)A hole system
    Shabani, J.
    Petta, J. R.
    Shayegan, M.
    APPLIED PHYSICS LETTERS, 2008, 93 (21)
  • [40] Spin polarization of quasi-two-dimensional hole systems
    Winkler, R
    PHYSICAL REVIEW B, 2005, 71 (11):
12345