论文标题
超导波动对扩散状态下2D电子系统的交流电导率的影响
The effect of superconducting fluctuations on the ac conductivity of a 2D electron system in the diffusive regime
论文作者
论文摘要
我们报告了针对扩散状态下无序的二维电子系统的AC电导率$σ（ω）$的一环校正的完整分析表达。获得的表达包括弱定位和Altshuler-Aronov校正以及由于超导过渡温度以上的超导波动而引起的校正。派生的表达式在静态限制中没有$ 1/（IΩ）$发散，$ω\ 0 $，与无序电子系统的正常状态电导率的一般期望一致。
We report a complete analytical expression for the one-loop correction to the ac conductivity $σ(ω)$ of a disordered two-dimensional electron system in the diffusive regime. The obtained expression includes the weak localization and Altshuler-Aronov corrections as well as the corrections due to superconducting fluctuations above superconducting transition temperature. The derived expression has no $1/(iω)$ divergency in the static limit, $ω\to 0$, in agreement with general expectations for the normal state conductivity of a disordered electron system.
