VALLEY SPLITTING AND g-FACTOR IN AlAs QUANTUM WELLS

被引：0
|
作者：
Duarte, C. A. [1 ]
Gusev, G. M. [2 ]
Lamas, T. E. [2 ]
Bakarov, A. K. [2 ,3 ]
Portal, J. -C. [4 ,5 ,6 ]
机构：
[1] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo, Brazil
[3] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
[4] GHMFL CNRS, F-38042 Grenoble 9, France
[5] INSA Toulouse, F-31077 Toulouse 4, France
[6] Inst Univ France, Toulouse, France
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2009年 / 23卷 / 12-13期
关键词：
AlAs; valley splitting; g-factor; MAGNETIC-FIELD; COLLAPSE;
D O I：
10.1142/S0217979209062608
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Here we present the results of magneto resistance measurements in tilted magnetic field and compare them with calculations. The comparison between calculated and measured spectra for the case of perpendicular fields enable us to estimate the dependence of the valley splitting as a function of the magnetic field and the total Lande g-factor (which is assumed to be independent of the magnetic field). Since both the exchange contribution to the Zeeman splitting as well as the valley splitting are properties associated with the 2D quantum confinement, they depend only on the perpendicular component of the magnetic field, while the bare Zeeman splitting depends on the total magnetic field. This information aided by the comparison between experimental and calculated gray scale maps permits to obtain separately the values of the exchange and the bare contribution to the g-factor.
引用
收藏
页码：2948 / 2954
页数：7
相关论文
共 50 条
  • [31] Bychkov-Rashba effect and g-factor tuning in modulation doped SiGe quantum wells
    Malissa, H
    Jantsch, W
    Mühlberger, M
    Schäffler, F
    Wilamowski, Z
    Draxler, M
    Bauer, P
    ACTA PHYSICA POLONICA A, 2004, 105 (06) : 585 - 590
  • [32] EXTREME ANISOTROPY OF THE G-FACTOR IN QUANTUM WIRES
    OESTREICH, M
    HEBERLE, AP
    RUHLE, WW
    NOTZEL, R
    PLOOG, K
    EUROPHYSICS LETTERS, 1995, 31 (07): : 399 - 404
  • [33] g-Factor Calculation in Small Quantum Dots
    A. M. Mandel
    V. B. Oshurko
    S. G. Veselko
    K. G. Solomakho
    S. M. Pershin
    A. A. Sharts
    Bulletin of the Lebedev Physics Institute, 2018, 45 : 282 - 286
  • [34] g-Factor Calculation in Small Quantum Dots
    Mandel, A. M.
    Oshurko, V. B.
    Veselko, S. G.
    Solomakho, K. G.
    Pershin, S. M.
    Sharts, A. A.
    BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE, 2018, 45 (09) : 282 - 286
  • [35] Effective g-factor in a wide quantum wire
    Zorkani, I
    Mdaa, A
    El Messaoudi, K
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2000, 220 (02): : 923 - 929
  • [36] Valley splitting theory of SiGe/Si/SiGe quantum wells
    Friesen, Mark
    Chutia, Sucismita
    Tahan, Charles
    Coppersmith, S. N.
    PHYSICAL REVIEW B, 2007, 75 (11):
  • [37] Electron g-factor anisotropy in GaAs/Al1-xGaxAs quantum wells of different symmetry
    Nefyodov, Yu. A.
    Shchepetilnikov, A. V.
    Kukushkin, I. V.
    Dietsche, W.
    Schmult, S.
    PHYSICAL REVIEW B, 2011, 84 (23):
  • [38] Electron and hole g-factor oscillations in CdTe-based modulation-doped quantum wells
    Shen, JX
    Ossau, W
    Fischer, F
    Waag, A
    Landwehr, G
    SURFACE SCIENCE, 1996, 361 (1-3) : 460 - 463
  • [39] Determination of hole g-factor in InAs/InGaAs/InAlAs quantum wells by magneto-photoluminescence studies
    1600, American Institute of Physics Inc. (121):
  • [40] Effect of Quantum Hall Edge Strips on Valley Splitting in Silicon Quantum Wells
    Wuetz, Brian Paquelet
    Losert, Merritt P.
    Tosato, Alberto
    Lodari, Mario
    Bavdaz, Peter L.
    Stehouwer, Lucas
    Amin, Payam
    Clarke, James S.
    Coppersmith, Susan N.
    Sammak, Amir
    Veldhorst, Menno
    Friesen, Mark
    Scappucci, Giordano
    PHYSICAL REVIEW LETTERS, 2020, 125 (18)
12345