OBSERVATION OF THE FRACTIONAL QUANTUM HALL-EFFECT IN SI/SIGE HETEROSTRUCTURES

被引:74
作者
NELSON, SF [1 ]
ISMAIL, K [1 ]
NOCERA, JJ [1 ]
FANG, FF [1 ]
MENDEZ, EE [1 ]
CHU, JO [1 ]
MEYERSON, BS [1 ]
机构
[1] UNIV CAIRO,FAC ENGN,DEPT ELECTR & COMMUN,GIZA,EGYPT
关键词
D O I
10.1063/1.107670
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have observed the fractional quantum Hall effect in the magnetotransport properties of a two-dimensional electron gas in an n-type Si/SiGe heterostructure. The effect was observed for filling factors v=2/3 and v=4/3 in samples whose mobilities at 1.4 K ranged from 37 000 to 85 000 cm2/V s.
引用
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页码:64 / 66
页数:3
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共 8 条
  • [1] STRAIN-INDUCED TWO-DIMENSIONAL ELECTRON-GAS IN SELECTIVELY DOPED SI/SIXGE1-X SUPERLATTICES
    ABSTREITER, G
    BRUGGER, H
    WOLF, T
    JORKE, H
    HERZOG, HJ
    [J]. PHYSICAL REVIEW LETTERS, 1985, 54 (22) : 2441 - 2444
  • [2] GAVRILOV MG, 1984, JETP LETT+, V39, P507
  • [3] NEGATIVE CHARGE, BARRIER HEIGHTS, AND THE CONDUCTION-BAND DISCONTINUITY IN ALXGA1-XAS CAPACITORS
    HICKMOTT, TW
    SOLOMON, PM
    FISCHER, R
    MORKOC, H
    [J]. JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) : 2844 - 2853
  • [4] HIGH ELECTRON-MOBILITY IN MODULATION-DOPED SI/SIGE
    ISMAIL, K
    MEYERSON, BS
    WANG, PJ
    [J]. APPLIED PHYSICS LETTERS, 1991, 58 (19) : 2117 - 2119
  • [5] KUKUSHKIN IV, 1984, ZH EKSP TEOR FIZ+, V60, P1285
  • [6] EXTREMELY HIGH ELECTRON-MOBILITY IN SI/GEXSI1-X STRUCTURES GROWN BY MOLECULAR-BEAM EPITAXY
    MII, YJ
    XIE, YH
    FITZGERALD, EA
    MONROE, D
    THIEL, FA
    WEIR, BE
    FELDMAN, LC
    [J]. APPLIED PHYSICS LETTERS, 1991, 59 (13) : 1611 - 1613
  • [7] HIGH-ELECTRON-MOBILITY SI/SIGE HETEROSTRUCTURES - INFLUENCE OF THE RELAXED SIGE BUFFER LAYER
    SCHAFFLER, F
    TOBBEN, D
    HERZOG, HJ
    ABSTREITER, G
    HOLLANDER, B
    [J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1992, 7 (02) : 260 - 266
  • [8] FRACTIONAL QUANTUM HALL-EFFECT IN EXTREMELY HIGH MOBILITY GAAS/(ALGA)AS HETEROSTRUCTURES
    WILLETT, R
    STORMER, HL
    TSUI, DC
    GOSSARD, AC
    ENGLISH, JH
    BALDWIN, KW
    [J]. SURFACE SCIENCE, 1988, 196 (1-3) : 257 - 262