论文标题
用电场破坏薄膜中的超导性
Destroying superconductivity in thin films with an electric field
论文作者
论文摘要
在本文中，我们使用Ginzburg-Landau方法表明，适当强的电场可以驱动从超导体向普通金属的相变。通过考虑到超导间隙引起的介电常数的校正，即使考虑筛选效果，也可以持续存在过渡。我们测试了该模型对最近的实验观察结果进行测试，其中已经观察到强大的电场可以控制超导薄膜中的超电流。我们发现与实验数据有着极好的一致性，并能够解释几个观察到的特征。我们还提出了一种通过超导体驱动器电子隧道来测试我们的理论建议的方法。
In this paper we use a Ginzburg-Landau approach to show that a suitably strong electric field can drive a phase transition from a superconductor to a normal metal. The transition is induced by taking into account corrections to the permittivity due to the superconductive gap and persists even when screening effects are considered. We test the model against recent experimental observations in which a strong electric field has been observed to control the supercurrent in superconducting thin films. We find excellent agreement with the experimental data and are able to explain several observed features. We additionally suggest a way to test our theoretical proposal via superconductor-superconductor electron tunneling.
