QUANTUM CONDUCTANCE FLUCTUATIONS IN 3D-BALLISTIC ADIABATIC WIRES

被引:9
作者
FALKO, VI [1 ]
LESOVIK, GB [1 ]
机构
[1] CHERNOGOLOVKA SOLID STATE PHYS INST,DEPT THEORY,CHERNOGOLOVKA 142432,USSR
关键词
D O I
10.1016/0038-1098(92)90101-E
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We predict quantum conductance fluctuations in three-dimensional (3D) adiabatic wires rising from fluctuations in the energy spectrum of size-quantized electron motion across the channel. These fluctuations could be observed as random oscillations in the voltage dependence of the differential conductance dI/dV or the magnetic field dependence. They obey Poisson or Wigner-Dyson statistics depending on the cross sectional shape of the wire and can have an amplitude which exceeds the universal e2/h value.
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页码:835 / 837
页数:3
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