Trion and exciton dephasing measurements in modulation-doped quantum wells:: A probe for trion and carrier localization

被引：57
作者：
Brinkmann, D
Kudrna, J
Gilliot, P
Hönerlage, B
Arnoult, A
Cibert, J
Tatarenko, S
机构：
[1] Inst Phys & Chim Mat Strasbourg, Grp Opt Nonlineaire & Optoelect, Unite Mixte CNRS ULP UMR 7504, F-67037 Strasbourg, France
[2] Univ Grenoble 1, Spectrometrie Phys Lab, Unite Mixte CNRS UMR 5588, F-38402 St Martin Dheres, France
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.60.4474
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To investigate the properties of a two-dimensional carrier gas at intermediate densities, we perform picosecond transient four-wave mixing experiments on trions (charged excitons) and neutral excitons in modulation p-doped CdTe/Cd1-x-yMgxZnyTe quantum wells. The determination of trion and exciton dephasing rates reveals a localization of both trions and holes in potential fluctuations induced by the ionized remote accepters. We demonstrate that trions can be efficiently used as a charged optical probe sensitive to electrostatic potential fluctuations which are imperceptible for neutral excitons. [S0163-1829(99)15731-X].
引用
收藏
页码：4474 / 4477
页数：4
相关论文
共 25 条
  • [1] Arnoult A, 1998, J CRYST GROWTH, V184, P445
  • [2] ELECTRON-CONCENTRATION-DEPENDENT QUANTUM-WELL LUMINESCENCE - EVIDENCE FOR A NEGATIVELY CHARGED EXCITON
    BUHMANN, H
    MANSOURI, L
    WANG, J
    BETON, PH
    MORI, N
    EAVES, L
    HENINI, M
    POTEMSKI, M
    [J]. PHYSICAL REVIEW B, 1995, 51 (12): : 7969 - 7972
  • [3] Ground state energy of the negatively charged exciton X- in bidimensional semiconductors in a steady electric field
    Dujardin, F
    ElHassani, A
    Feddi, E
    Stebe, B
    [J]. SOLID STATE COMMUNICATIONS, 1997, 103 (09) : 515 - 518
  • [4] Near-field spectroscopy of a gated electron gas: A direct evidence for electron localization
    Eytan, G
    Yayon, Y
    Rappaport, M
    Shtrikman, H
    Bar-Joseph, I
    [J]. PHYSICAL REVIEW LETTERS, 1998, 81 (08) : 1666 - 1669
  • [5] OPTICAL SPECTROSCOPY OF A 2-DIMENSIONAL ELECTRON-GAS NEAR THE METAL-INSULATOR-TRANSITION
    FINKELSTEIN, G
    SHTRIKMAN, H
    BARJOSEPH, I
    [J]. PHYSICAL REVIEW LETTERS, 1995, 74 (06) : 976 - 979
  • [6] Charged exciton dynamics in GaAs quantum wells
    Finkelstein, G
    Umansky, V
    Bar-Joseph, I
    Ciulin, V
    Haacke, S
    Ganiere, JD
    Deveaud, B
    [J]. PHYSICAL REVIEW B, 1998, 58 (19): : 12637 - 12640
  • [7] GILLIOT P, IN PRESS PHYS R 0815
  • [8] Observation of charged X- and X+ excitons and metal-to-insulator transition in CdTe/CdMgZnTe modulation-doped quantum wells
    Haury, A
    Arnoult, A
    Chitta, VA
    Cibert, J
    D'Aubigne, YM
    Tatarenko, S
    Wasiela, A
    [J]. SUPERLATTICES AND MICROSTRUCTURES, 1998, 23 (05) : 1097 - 1102
  • [9] Observation of a ferromagnetic transition induced by two-dimensional hole gas in modulation-doped CdMnTe quantum wells
    Haury, A
    Wasiela, A
    Arnoult, A
    Cibert, J
    Tatarenko, S
    Dietl, T
    dAubigne, YM
    [J]. PHYSICAL REVIEW LETTERS, 1997, 79 (03) : 511 - 514
  • [10] EXCITON DYNAMICS IN DISORDERED QUANTUM-WELLS - LOCALIZED AND DELOCALIZED REGIMES
    HELLMANN, R
    CUNDIFF, ST
    KOCH, M
    FELDMANN, J
    GOBEL, EO
    KUHNHEINRICH, B
    YAKOVLEV, DR
    WAAG, A
    LANDWEHR, G
    [J]. PHYSICAL REVIEW B, 1994, 50 (19) : 14651 - 14654
123