CHARACTERIZATION OF THE ELECTRON-GAS IN WIDE PARABOLIC GAAS/ALXGA1-XAS QUANTUM-WELLS

被引:23
作者
GWINN, EG
HOPKINS, PF
RIMBERG, AJ
WESTERVELT, RM
SUNDARAM, M
GOSSARD, AC
机构
[1] HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138
[2] UNIV CALIF SANTA BARBARA,DEPT ELECT & COMP ENGN,SANTA BARBARA,CA 93106
[3] UNIV CALIF SANTA BARBARA,DEPT MAT,SANTA BARBARA,CA 93106
来源
PHYSICAL REVIEW B | 1990年 / 41卷 / 15期
关键词
D O I
10.1103/PhysRevB.41.10700
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We demonstrate the production of a thick layer of high-mobility electron gas by comparison of Shubnikovde Haas oscillations with self-consistent calculations of the ground-state energy levels. Ion-gauge measurements of the average Al flux during a programmed growth sequence show that the Al profile for the parabolic-well structures studied here follows the design profile closely. The calculated and measured energy levels (EF-Ei) agree within the uncertainty of the well parameters. © 1990 The American Physical Society.
引用
收藏
页码:10700 / 10705
页数:6
相关论文
共 19 条
  • [1] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS
    ANDO, T
    FOWLER, AB
    STERN, F
    [J]. REVIEWS OF MODERN PHYSICS, 1982, 54 (02) : 437 - 672
  • [2] BREY L, IN PRESS PHYS REV B
  • [3] BURNETT J, UNPUB
  • [4] QUANTUM HALL-EFFECT IN WIDE PARABOLIC GAAS/ALXGA1-XAS WELLS
    GWINN, EG
    WESTERVELT, RM
    HOPKINS, PF
    RIMBERG, AJ
    SUNDARAM, M
    GOSSARD, AC
    [J]. PHYSICAL REVIEW B, 1989, 39 (09): : 6260 - 6263
  • [5] PRECISELY CONTROLLED COMPOSITIONAL GRADIENTS IN MBE GROWN AIGAAS/GAAS STRUCTURES
    HARBISON, JP
    PETERSON, LD
    LEVKOFF, J
    [J]. JOURNAL OF CRYSTAL GROWTH, 1987, 81 (1-4) : 34 - 37
  • [6] PARABOLIC QUANTUM WELLS WITH THE GAAS-ALXGA1-XAS SYSTEM
    MILLER, RC
    GOSSARD, AC
    KLEINMAN, DA
    MUNTEANU, O
    [J]. PHYSICAL REVIEW B, 1984, 29 (06): : 3740 - 3743
  • [7] MOTT NF, 1989, ELECTRONIC PROCESSES, P102
  • [8] Prange R. E., 1987, QUANTUM HALL EFFECT
  • [9] ELECTRON-ENERGY LEVELS FOR A DENSE ELECTRON-GAS IN PARABOLIC GAAS/ALXGA1-XAS QUANTUM WELLS
    RIMBERG, AJ
    WESTERVELT, RM
    [J]. PHYSICAL REVIEW B, 1989, 40 (06): : 3970 - 3974
  • [10] OBSERVATION OF RESONANT TUNNELING THROUGH A COMPOSITIONALLY GRADED PARABOLIC QUANTUM-WELL
    SEN, S
    CAPASSO, F
    GOSSARD, AC
    SPAH, RA
    HUTCHINSON, AL
    CHU, SNG
    [J]. APPLIED PHYSICS LETTERS, 1987, 51 (18) : 1428 - 1430