Signature of the electron-electron interaction in the magnetic-field dependence of nonlinear I-V characteristics in mesoscopic systems.
Signature of the electron-electron interaction in the magnetic-field dependence of nonlinear I-V characteristics in mesoscopic systems.
复制标题
介观系统中非线性 I-V 特性的磁场依赖性中电子-电子相互作用的特征。
DOI：
10.1103/physrevb.74.104205
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发表时间：
2004
影响因子：
8.6
通讯作者：
A. Zyuzin
中科院分区：
文献类型：
--
作者：
B. Spivak;A. Zyuzin
我们指出，具有金属导电性的介观样品的非线性I-V特性应包含在磁场中为线性的部分和在电场中为二次的部分。这些对电流的贡献完全是由于电子-电子相互作用，因此它们与电子-电子相互作用常数成比例。我们还注意到，电流的非线性部分的振幅和符号都表现出作为温度的函数的随机振荡。
We show that the nonlinear I-V characteristics of mesoscopic samples with metallic conductivity should contain parts which are linear in the magnetic-field and quadratic in the electric field. These contributions to the current are entirely due to the electron-electron interaction and consequently they are proportional to the electron-electron interaction constant. We also note that both the amplitude and the sign of the nonlinear part of the current exhibit random oscillations as a function of temperature.