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Regensburg 2007 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 10: Superconductivity - Properties, Electronic Structure, Order Parameter

TT 10.13: Talk

Tuesday, March 27, 2007, 12:45–13:00, H18

Ginzburg-Landau theory of superconducting surfaces under electric fieldsPavel Lipavsky1, •Klaus Morawetz2,3, Jan Kolacek4, Ernst Helmut Brandt5, and Tzong Jer Yang61Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 12116 Prague 2, Czech Republic — 2Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany — 3Max Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187 Dresden, Germany — 4Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16253 Prague 6, Czech Republic — 5Max Planck Institute for Metals Research, D-70506 Stuttgart, Germany — 6Department of Electrophysics, National Chiao-Tung University, Hsinchu 300, Taiwan

A boundary condition for the Ginzburg-Landau wave function at surfaces biased by a strong electric field is derived within the de Gennes approach. This condition provides a simple theory of the field effect on the critical temperature of superconducting layers. [Phys. Rev. B 73 (2006) 052505-1-5]

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