CONDUCTANCE FLUCTUATIONS IN SYSTEMS WITH A RANDOM-MAGNETIC-FIELD SCATTERING

被引:26
作者
FALKO, VI [1 ]
机构
[1] RUSSIAN ACAD SCI,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA
来源
PHYSICAL REVIEW B | 1994年 / 50卷 / 23期
关键词
D O I
10.1103/PhysRevB.50.17406
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The perturbation-theory study of universal conductance fluctuations is generalized to systems with electron scattering in a static random magnetic field. Our calculation confirms the intuitive expectation that the amplitude of fluctuations coincides with the universal value typical for the unitary random-scattering ensemble. An application of this result to micrometer-size wires with the two-dimensional electron liquid near filling factor ν=1/2q allows us to predict aperiodic Coulomb-type oscillations in this system beyond the Coulomb-blockade regime, which would manifest a correspondence between the Aharonov-Bohm and Aharonov-Casher effects specific to composite fermions. © 1994 The American Physical Society.
引用
收藏
页码:17406 / 17410
页数:5
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