MAGNETOPHONON SHAKEUP IN A WIGNER CRYSTAL - APPLICATIONS TO TUNNELING SPECTROSCOPY IN THE QUANTUM HALL REGIME

被引:67
作者
JOHANSSON, P
KINARET, JM
机构
[1] NORDITA, DK-2100 Copenhagen O
关键词
D O I
10.1103/PhysRevLett.71.1435
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate the tunnel current between two parallel two-dimensional electron systems in a strong perpendicular magnetic field. We model the strongly correlated electron systems by Wigner crystals, and describe their low-energy dynamics in terms of magnetophonons. A tunneling electron shakes up magnetophonons, which results in a conductance peak that is displaced away from zero voltage and broadened compared with the case of no magnetic field. Our results are in very good quantitative agreement with recent experiments.
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页码:1435 / 1438
页数:4
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