LOCALIZATION OF PARTICLES IN A 2-DIMENSIONAL RANDOM POTENTIAL

被引:42
作者
GOTZE, W [1 ]
PRELOVSEK, P [1 ]
WOLFLE, P [1 ]
机构
[1] MAX PLANCK INST PHYS,MUNCHEN,FED REP GER
关键词
D O I
10.1016/0038-1098(79)90654-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A recently proposed theory of the density response of particles moving in a random potential is applied to two-dimensional systems. The particles are found to be localized for arbitrary small disorder. By decreasing the potential fluctuations we find an abrupt transition from an insulating state to a quasi-conducting state exhibiting exceedingly small values for the inverse susceptibility, the inverse localization length and the excitation gap of the dynamical conductivity. © 1979.
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页码:369 / 373
页数:5
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