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Boundary condition for Ginzburg-Landau theory of superconducting layers

机译:金茨堡-朗道超导层理论的边界条件

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摘要

Electrostatic charging changes the critical temperature of superconducting thin layers. To understand the basic mechanism, it is possible to use the Ginzburg-Landau theory with the boundary condition derived by de Gennes from the BCS theory. Here we show that a similar boundary condition can be obtained from the principle of minimum free energy. We compare the two boundary conditions and use the Budd-Vannimenus theorem as a test of approximations.
机译:静电会改变超导薄层的临界温度。为了理解基本机制,可以将Ginzburg-Landau理论与de Gennes从BCS理论得出的边界条件一起使用。在这里,我们表明可以从最小自由能原理获得相似的边界条件。我们比较两个边界条件,并使用Budd-Vannimenus定理作为近似检验。

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  • 来源
    《Physical review》 |2009年第17期|174510.1-174510.6|共6页
  • 作者单位

    Institute of Physics, Academy of Sciences, Cukrovarnicka 10, 16253 Prague 6, Czech Republic;

    Institute of Physics, Academy of Sciences, Cukrovarnicka 10, 16253 Prague 6, Czech Republic Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 12116 Prague 2, Czech Republic;

    Forschungszentrum Dresden-Rossendorf, PF 51 01 19, 01314 Dresden, Germany International Center for Condensed Matter Physics, 70904-910 Brasilia, DF, Brazil;

    Max Planck Institute for Metals Research, D-70506 Stuttgart, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    phenomenological theories (two-fluid, ginzburg-landau, etc.);

    机译:现象学理论(双流体;金茨堡-朗道等);

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