RESONANT SHALLOW DONOR MAGNETOPOLARON EFFECT IN A GAAS/ALGAAS QUANTUM-DOT IN HIGH MAGNETIC-FIELDS

被引：47
|
作者：
ZHU, KD [1 ]
KOBAYASHI, T [1 ]
机构：
[1] UNIV TOKYO,FAC SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN
来源：
SOLID STATE COMMUNICATIONS | 1994年 / 92卷 / 04期
关键词：
NANOSTRUCTURES; SEMICONDUCTORS; ELECTRON PHONON INTERACTIONS; CYCLOTRON RESONANCE;
D O I：
10.1016/0038-1098(94)90716-1
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Resonant shallow donor magnetopolaron effect in a GaAs/AlGaAs quantum dot in high magnetic fields is investigated by the variational treatment. It is shown that both the cyclotron resonant frequency omega*c+ due to the 1s-p+ hydrogenic transition and the cyclotron resonant frequency omega*c- due to the 1s-p- hydrogenic transition increase with the decrease of the dot size. The cyclotron resonant frequency omega*c+ is always larger than the bulk LO-phonon frequency omega(LO), while the cyclotron resonant frequency omega*c- is lower than omega(LO) for larger quantum dots. The results also show that Coulomb interaction effect on the resonant frequencies is significant.
引用
收藏
页码：353 / 356
页数：4
相关论文
共 50 条
  • [11] QUANTIZATION OF PERSISTENT CURRENTS IN QUANTUM-DOT AT STRONG MAGNETIC-FIELDS
    AVISHAI, Y
    KOHMOTO, M
    PHYSICA A, 1993, 200 (1-4): : 504 - 511
  • [12] Resonant magnetic field effect on magnetopolarons in a GaAs/AlGaAs quantum dot at finite temperature
    Zhu, KD
    Gu, SW
    Li, WS
    PHYSICS LETTERS A, 1996, 212 (03) : 171 - 177
  • [13] RESONANT MAGNETIC-FIELDS OF A MAGNETOPOLARON BOUND TO A COULOMB IMPURITY IN A GAAS/GA1-XALXAS QUANTUM-WELL
    WEI, BH
    LIU, YY
    GU, SW
    PHYSICAL REVIEW B, 1991, 44 (11): : 5703 - 5707
  • [14] Resonant magnetopolaron effects in GaAs/AlGaAs multiple quantum well structures
    Wang, YJ
    Nickel, HA
    McCombe, BD
    Peeters, FM
    Shi, JM
    Hai, GQ
    Wu, XG
    Eustis, TJ
    Schaff, W
    PHYSICA E, 1998, 2 (1-4): : 161 - 165
  • [15] Resonant magnetopolaron effects in GaAs/AlGaAs multiple quantum well structures
    Wang, Y.J.
    Nickel, H.A.
    McCombe, B.D.
    Peeters, F.M.
    Shi, J.M.
    Hai, G.Q.
    Wu, X.-G.
    Eustis, T.J.
    Schaff, W.
    Physica E: Low-Dimensional Systems and Nanostructures, 1998, 2 (1-4): : 161 - 165
  • [16] Landau levels and shallow donor states in GaAs/AlGaAs multiple quantum wells at megagauss magnetic fields
    Zybert, M.
    Marchewka, M.
    Sheregii, E. M.
    Rickel, D. G.
    Betts, J. B.
    Balakirev, F. F.
    Gordon, M.
    Stier, A. V.
    Mielke, C. H.
    Pfeffer, P.
    Zawadzki, W.
    PHYSICAL REVIEW B, 2017, 95 (11)
  • [17] Binding energy of donor states in a GaAs quantum-dot: Effect of electric and magnetic field
    Terzis, AF
    Baskoutasz, S
    SECOND CONFERENCE ON MICROELECTRONICS, MICROSYSTEMS AND NANOTECHNOLOGY, 2005, 10 : 77 - 80
  • [18] Combination effects of tilted electric and magnetic fields on donor binding energy in a GaAs/AlGaAs cylindrical quantum dot
    Zeng, Zaiping
    Garoufalis, Christos S.
    Baskoutas, Sotirios
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2012, 45 (23)
  • [19] THE EFFECT OF INPLANE MAGNETIC-FIELDS ON THE QUANTUM STATES OF CARRIERS IN QUANTUM-WELLS IN GAAS-ALGAAS HETEROSTRUCTURES
    CHAVES, AS
    OLIVEIRA, GMG
    GOMES, VMS
    LEITE, JR
    SUPERLATTICES AND MICROSTRUCTURES, 1987, 3 (03) : 231 - 234
  • [20] DYNAMICS OF AN ELECTRON-WAVE PACKET IN A QUANTUM-DOT SUBJECTED TO MAGNETIC-FIELDS
    UETA, T
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (03) : 877 - 886
12345