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Berlin 2008 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 15: Superconductivity: Poster Session

TT 15.24: Poster

Tuesday, February 26, 2008, 14:00–18:00, Poster B

Contribution of the surface dipole to deformation of superconductorsPavel Lipavsky1,2, •Klaus Morawetz3,4, Jan Kolacek4, Ernst Helmut Brandt5, and Michael Schreiber31Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 12116 Prague 2, Czech Republic — 2Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16253 Prague 6, Czech Republic — 3Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany — 4Max Planck Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187 Dresden, Germany — 5Max Planck Institute for Metals Research, 70506 Stuttgart, Germany

The interaction of the ionic lattice with the superconducting condensate is treated in terms of the electrostatic force in superconductors. It is shown that the surface dipole supplies the force responsible for the volume difference of the normal and superconducting states. Assuming this mechanism we argue that the usual parametrization of the theory of deformable superconductors should be revisited.
arXiv:0708.3760

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