Conductance oscillations with magnetic field of a two-dimensional electron gas-superconductor junction

被引：29
|
作者：
Chtchelkatchev, N. M. [1 ]
Burmistrov, I. S.
机构：
[1] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117940, Russia
[2] Moscow Phys Tech Inst, Dept Theoret Phys, Dolgoprudnyi 141700, Russia
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 21期
关键词：
D O I：
10.1103/PhysRevB.75.214510
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We develop a theory for the current-voltage characteristics of a two-dimensional electron gas-superconductor interface in magnetic field at arbitrary temperatures and in the presence of surface roughness. Our theory predicts that, in the case of disordered interface, the higher harmonics of the conductance oscillations with the filling factor are strongly suppressed as compared with the first one; it should be contrasted with the case of the ideal interface for which amplitudes of all harmonics involved are of the same order. Our findings are in qualitative agreement with recent experimental data.
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页数：10
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