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

被引:76
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.
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页码:64 / 66
页数:3
相关论文
共 8 条
[1]   STRAIN-INDUCED TWO-DIMENSIONAL ELECTRON-GAS IN SELECTIVELY DOPED SI/SIXGE1-X SUPERLATTICES [J].
ABSTREITER, G ;
BRUGGER, H ;
WOLF, T ;
JORKE, H ;
HERZOG, HJ .
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 [J].
HICKMOTT, TW ;
SOLOMON, PM ;
FISCHER, R ;
MORKOC, H .
JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :2844-2853
[4]   HIGH ELECTRON-MOBILITY IN MODULATION-DOPED SI/SIGE [J].
ISMAIL, K ;
MEYERSON, BS ;
WANG, PJ .
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 [J].
MII, YJ ;
XIE, YH ;
FITZGERALD, EA ;
MONROE, D ;
THIEL, FA ;
WEIR, BE ;
FELDMAN, LC .
APPLIED PHYSICS LETTERS, 1991, 59 (13) :1611-1613
[7]   HIGH-ELECTRON-MOBILITY SI/SIGE HETEROSTRUCTURES - INFLUENCE OF THE RELAXED SIGE BUFFER LAYER [J].
SCHAFFLER, F ;
TOBBEN, D ;
HERZOG, HJ ;
ABSTREITER, G ;
HOLLANDER, B .
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1992, 7 (02) :260-266
[8]   FRACTIONAL QUANTUM HALL-EFFECT IN EXTREMELY HIGH MOBILITY GAAS/(ALGA)AS HETEROSTRUCTURES [J].
WILLETT, R ;
STORMER, HL ;
TSUI, DC ;
GOSSARD, AC ;
ENGLISH, JH ;
BALDWIN, KW .
SURFACE SCIENCE, 1988, 196 (1-3) :257-262