Magnetoresistance of two-dimensional ballistic microcontacts with electron-electron scattering

被引：0
作者：
T. V. Kostyuchenko
K. E. Nagaev
机构：
来源：
Journal of Communications Technology and Electronics | 2010年 / 55卷
关键词：
Magnetic Field; Fermi Surface; Strong Magnetic Field; Incident Electron; Semiclassical Approximation;
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学科分类号：
摘要：
In the semiclassical approximation we calculate corrections to the Sharvin conductance of two-dimensional ballistic microcontact. They are caused by electron-electron interactions outside the contact, the main contribution to the corrections are made by the collisions of electrons with almost opposite momenta. The corrections are positive, increase with temperature and are strongly suppressed by a magnetic field. We assume that the anomalous positive magnetoresistance observed in a recent experiment may be a consequence of this suppression.
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页码：1143 / 1153
页数：10
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