Large variations in the hole spin splitting of quantum-wire subband edges

被引：26
作者：
Csontos, Dan
Zulicke, Ulrich
机构：
[1] Massey Univ, Inst Fundamental Sci, Palmerston North 4442, New Zealand
[2] Massey Univ, MacDiamond Inst Adv Mat & Nanotechnol, Palmerston North 4442, New Zealand
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.76.073313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study Zeeman splitting of zone-center subband edges in a cylindrical hole wire subject to a magnetic field parallel to its axis. The g factor turns out to fluctuate strongly as a function of wire subband index, assuming values that differ substantially from those found in higher-dimensional systems. We analyze the spin properties of hole-wire states using invariants of the spin-3/2 density matrix and find a strong correlation between g-factor value and the profile of hole spin-polarization density. Our results suggest possibilities for confinement engineering of hole spin splittings.
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页数：4
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共 32 条
  • [21] Ballistic hole transport in a quantum wire
    Pfeiffer, LN
    de Picciotto, R
    West, KW
    Baldwin, KW
    Quay, CHL
    [J]. APPLIED PHYSICS LETTERS, 2005, 87 (07)
  • [22] Lande g factors and orbital momentum quenching in semiconductor quantum dots -: art. no. 026804
    Pryor, CE
    Flatté, ME
    [J]. PHYSICAL REVIEW LETTERS, 2006, 96 (02)
  • [23] Samuelson L., 2003, MATER TODAY, V6, P22, DOI [DOI 10.1016/S1369-7021(03)01026-5, 10. 1016/S1369-7021(03)01026-5]
  • [24] ANALYTICAL FORMALISM FOR DETERMINING QUANTUM-WIRE AND QUANTUM-DOT BAND-STRUCTURE IN THE MULTIBAND ENVELOPE-FUNCTION APPROXIMATION
    SERCEL, PC
    VAHALA, KJ
    [J]. PHYSICAL REVIEW B, 1990, 42 (06): : 3690 - 3710
  • [25] QUANTUM RESONANCES IN VALENCE BANDS OF GERMANIUM .1. THEORETICAL CONSIDERATIONS
    SUZUKI, K
    HENSEL, JC
    [J]. PHYSICAL REVIEW B, 1974, 9 (10): : 4184 - 4218
  • [26] FINE-STRUCTURE OF EXCITONS IN TYPE-II GAAS/ALAS QUANTUM-WELLS
    VANKESTEREN, HW
    COSMAN, EC
    VANDERPOEL, WAJA
    FOXON, CT
    [J]. PHYSICAL REVIEW B, 1990, 41 (08): : 5283 - 5292
  • [27] Spin density matrix of spin-3/2 hole systems
    Winkler, R
    [J]. PHYSICAL REVIEW B, 2004, 70 (12): : 125301 - 1
  • [28] Spin polarization of quasi-two-dimensional hole systems
    Winkler, R
    [J]. PHYSICAL REVIEW B, 2005, 71 (11):
  • [29] Winkler R., 2003, SPIN ORBIT COUPLING
  • [30] Spintronics:: A spin-based electronics vision for the future
    Wolf, SA
    Awschalom, DD
    Buhrman, RA
    Daughton, JM
    von Molnár, S
    Roukes, ML
    Chtchelkanova, AY
    Treger, DM
    [J]. SCIENCE, 2001, 294 (5546) : 1488 - 1495
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