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QUANTUM TRANSPORT IN THE PRESENCE OF PHASE-BREAKING SCATTERING - GENERALIZED LANDAUER FORMULA

被引：18
作者：
FENG, SC
机构：
[1] UNIV CALIF LOS ANGELES,CTR SOLID STATE SCI,LOS ANGELES,CA 90024
[2] UNIV COLOGNE,INST PHYS 2,INST THEORET PHYS,W-5000 COLOGNE 41,GERMANY
来源：
PHYSICS LETTERS A | 1990年 / 143卷 / 08期
关键词：
D O I：
10.1016/0375-9601(90)90380-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The problem of quantum transport in the presence of phase-breaking scattering is formulated, using a model Hamiltonian for the electron-phonon coupling which can be solved exactly. This allows one to write down a generalized Landauer formula, which is valid in the presence of phase-breaking scattering, thus opening up an entire new regime of possible analytical and numerical calculations of electron transport properties at finite temperatures. We illustrate the applications of this new transport formalism with a phase-breaking scattering by an Einstein phonon model, and the suppression of hc/e oscillations of a ballistic Aharonov-Bohm ring. © 1990.
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页码：400 / 404
页数：5
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