Spectroscopy of excitonic Zeeman levels in single quantum dots

被引：4
|
作者：
Schaller, A [1 ]
Zrenner, A [1 ]
Abstreiter, G [1 ]
Bohm, G [1 ]
机构：
[1] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany
来源：
PHYSICA E | 1998年 / 2卷 / 1-4期
关键词：
quantum dots; coupled quantum wells; Zeeman effect; g-factor;
D O I：
10.1016/S1386-9477(98)00124-6
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fully confined excitons are investigated in natural quantum dots, which are formed by well-width fluctuations in GaAs/AlAs coupled quantum-well structures. In magnetooptic experiments a population inversion of the Zeeman split levels in the quantum dots is found under the condition of charge injection from the AlAs X-point state. This new phenomenon is explained in terms of spin thermalization in the intermediate indirect exciton state and subsequent tunnelling into the direct quantum-dot state. Population inversion is thereby caused by the associated sign reversal of the effective exciton g-factor. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：609 / 613
页数：5
相关论文
共 50 条
  • [31] Polarization properties of excitonic qubits in single self-assembled quantum dots
    Tonin, Catherine
    Hostein, Richard
    Voliotis, Valia
    Grousson, Roger
    Lemaitre, Aristide
    Martinez, Anthony
    PHYSICAL REVIEW B, 2012, 85 (15):
  • [32] Excitonic lifetimes in single GaAs quantum dots fabricated by local droplet etching
    Heyn, Ch
    Strelow, Ch
    Hansen, W.
    NEW JOURNAL OF PHYSICS, 2012, 14
  • [33] Excitonic trions in single and double quantum dots -: art. no. 165331
    Szafran, B
    Stébé, B
    Adamowski, J
    Bednarek, S
    PHYSICAL REVIEW B, 2002, 66 (16) : 1 - 9
  • [34] Multi-excitonic structures in GaAs quantum dots proved by photon correlation spectroscopy
    Kihira, T.
    Arashida, Y.
    Yamagiwa, M.
    Ogawa, Y.
    Minami, F.
    Koguchi, N.
    INTERNATIONAL SYMPOSIUM ON ADVANCED NANODEVICES AND NANOTECHNOLOGY, 2008, 109
  • [35] Relaxation Kinetics of Excitonic States in ZnSe Quantum Dots: A Femtosecond Laser Spectroscopy Study
    Gostev, F. E.
    Shelaev, I. V.
    Aibush, A. V.
    Kostrov, A. N.
    Titov, A. A.
    Kochev, S. Yu.
    Kabachii, Yu. A.
    Mekhata, M. S.
    Nadtochenko, V. A.
    HIGH ENERGY CHEMISTRY, 2018, 52 (04) : 283 - 288
  • [36] Relaxation Kinetics of Excitonic States in ZnSe Quantum Dots: A Femtosecond Laser Spectroscopy Study
    F. E. Gostev
    I. V. Shelaev
    A. V. Aibush
    A. N. Kostrov
    A. A. Titov
    S. Yu. Kochev
    Yu. A. Kabachii
    M. S. Mekhata
    V. A. Nadtochenko
    High Energy Chemistry, 2018, 52 : 283 - 288
  • [37] Discrete quantum levels and Zeeman splitting in ultra-thin gold-nanowire quantum dots
    Moriyama, Satoshi
    Morita, Yoshifumi
    Yoshihira, Masanori
    Kura, Hiroaki
    Ogawa, Tomoyuki
    Maki, Hideyuki
    JOURNAL OF APPLIED PHYSICS, 2019, 126 (04)
  • [38] SPECTROSCOPY OF QUANTUM LEVELS IN CHARGE-TUNABLE INGAAS QUANTUM DOTS
    DREXLER, H
    LEONARD, D
    HANSEN, W
    KOTTHAUS, JP
    PETROFF, PM
    PHYSICAL REVIEW LETTERS, 1994, 73 (16) : 2252 - 2255
  • [39] Shell-tunneling Spectroscopy of the single-particle energy levels of insulating quantum dots
    Bakkers, EPAM
    Hens, Z
    Zunger, A
    Franceschetti, A
    Kouwenhoven, LP
    Gurevich, L
    Vanmaekelbergh, D
    NANO LETTERS, 2001, 1 (10) : 551 - 556
  • [40] ZEEMAN SPLITTING OF THE EXCITONIC RECOMBINATION IN INXGA1-XAS/GAAS SINGLE QUANTUM-WELLS
    WIMBAUER, T
    OETTINGER, K
    EFROS, AL
    MEYER, BK
    BRUGGER, H
    PHYSICAL REVIEW B, 1994, 50 (12): : 8889 - 8892
12345