Temperature Dependence of Microwave Photoresistance in 2D Electron Systems

被引：73
作者：
Hatke, A. T. [1 ]
Zudov, M. A. [1 ]
Pfeiffer, L. N. [2 ]
West, K. W. [2 ]
机构：
[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA
[2] Alcatel Lucent, Bell Labs, Murray Hill, NJ 07974 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 06期
关键词：
ZERO-RESISTANCE STATES; MAGNETORESISTANCE OSCILLATIONS; PHOTOCONDUCTIVITY; LIFETIME; SCATTERING; GAS;
D O I：
10.1103/PhysRevLett.102.066804
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the temperature dependence of microwave-induced resistance oscillations in high-mobility two-dimensional electron systems. We find that the oscillation amplitude decays exponentially with increasing temperature, as exp(-alpha T-2), where alpha scales with the inverse magnetic field. This observation indicates that the temperature dependence originates primarily from the modification of the single particle lifetime, which we attribute to electron-electron interaction effects.
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页数：4
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