Observation of screening in the magneto-Coulomb drag between coupled two-dimensional electron systems

被引:68
作者
Rubel, H
Fischer, A
Dietsche, W
vonKlitzing, K
Eberl, K
机构
[1] Max-Planck-Institut für Festkörperforschung, Stuttgart, 70569
关键词
GASES; HETEROSTRUCTURES; TRANSPORT;
D O I
10.1103/PhysRevLett.78.1763
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The coupling between two spatially separated two-dimensional electron gases is studied as a function of magnetic field B. We find oscillations in the transresistivity R(T), which are up to 2 orders of magnitude enhanced compared to the B = 0 case. R(T) vanishes in the regime of a quantum Hall plateau and shows a twin-peaked structure in the inter-plateau regions. This observation is in good agreement with a recent theory by M. C. Bonsager Et al. [Phys. Rev. Lett. 77, 1366 (1996)] who predicted a similar behavior caused by the interplay of screening and Landau quantization.
引用
收藏
页码:1763 / 1766
页数:4
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