Insulating phases of two-dimensional electrons in high Landau levels: Observation of sharp thresholds to conduction

被引:108
作者
Cooper, KB [1 ]
Lilly, MP
Eisenstein, JP
Pfeiffer, LN
West, KW
机构
[1] CALTECH, Pasadena, CA 91125 USA
[2] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1103/PhysRevB.60.R11285
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The intriguing re-entrant integer quantized Hall states recently discovered in high Landau levels of high-mobility 2D electron systems are found to exhibit extremely nonlinear transport. At small currents these states reflect insulating behavior of the electrons in the uppermost Landau level. At larger currents, however, a discontinuous and hysteretic transition to a conducting state is observed. These phenomena, found only in very narrow magnetic field ranges, are suggestive of the depinning of a charge density wave state, but other explanations can also be constructed. [S0163-1829(99)51740-2].
引用
收藏
页码:11285 / 11288
页数:4
相关论文
共 19 条
[11]   Charge density wave in two-dimensional electron liquid in weak magnetic field [J].
Koulakov, AA ;
Fogler, MM ;
Shklovskii, BI .
PHYSICAL REVIEW LETTERS, 1996, 76 (03) :499-502
[12]  
KOULAKOV AA, 1997, PHYS REV LETT, V55, P9326
[13]   LOW-FREQUENCY NOISE IN THE REENTRANT INSULATING PHASE AROUND THE 1/5 FRACTIONAL QUANTUM HALL LIQUID [J].
LI, YP ;
SAJOTO, T ;
ENGEL, LW ;
TSUI, DC ;
SHAYEGAN, M .
PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1630-1633
[14]   Evidence for an anisotropic state of two-dimensional electrons in high Landau levels [J].
Lilly, MP ;
Cooper, KB ;
Eisenstein, JP ;
Pfeiffer, LN ;
West, KW .
PHYSICAL REVIEW LETTERS, 1999, 82 (02) :394-397
[15]   Exact results for interacting electrons in high Landau levels [J].
Moessner, R ;
Chalker, JT .
PHYSICAL REVIEW B, 1996, 54 (07) :5006-5015
[16]   Breakdown of the quantum Hall effect [J].
Nachtwei, G .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 1999, 4 (02) :79-101
[17]   Charge-density-wave ordering in half-filled high Landau levels [J].
Rezayi, EH ;
Haldane, FDM ;
Yang, K .
PHYSICAL REVIEW LETTERS, 1999, 83 (06) :1219-1222
[18]  
STANESCU TD, UNPUB
[19]   CONDUCTION THRESHOLD AND PINNING FREQUENCY OF MAGNETICALLY INDUCED WIGNER SOLID [J].
WILLIAMS, FIB ;
WRIGHT, PA ;
CLARK, RG ;
ANDREI, EY ;
DEVILLE, G ;
GLATTLI, DC ;
PROBST, O ;
ETIENNE, B ;
DORIN, C ;
FOXON, CT ;
HARRIS, JJ .
PHYSICAL REVIEW LETTERS, 1991, 66 (25) :3285-3288