Berlin 2008 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 15: Superconductivity: Poster Session
TT 15.24: Poster
Dienstag, 26. Februar 2008, 14:00–18:00, Poster B
Contribution of the surface dipole to deformation of superconductors — Pavel Lipavsky1,2, •Klaus Morawetz3,4, Jan Kolacek4, Ernst Helmut Brandt5, and Michael Schreiber3 — 1Faculty 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