Coulomb drag in the extreme quantum limit

被引:75
作者
Lilly, MP [1 ]
Eisenstein, JP
Pfeiffer, LN
West, KW
机构
[1] CALTECH, Pasadena, CA 91125 USA
[2] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1103/PhysRevLett.80.1714
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Coulomb drag resulting from interlayer electron-electron scattering in double layer 2D electron systems in a high magnetic field has been measured. Within the lowest Landau level the observed drag resistance exceeds its nero magnetic value by factors of typically 1000. At half-filling of the lowest Landau level in each layer (nu = 1/2) the data suggest that our bilayer systems are much more strongly correlated than recent theoretical models based on perturbatively coupled composite fermion metals. [S0031-9007(98)05365-4].
引用
收藏
页码:1714 / 1717
页数:4
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