Superconductivity in the Model with non Cooper Pairs

Details Superconductivity in the Model with non Cooper Pairs Superconductivity in the Model with non Cooper Pairs

2003-09-23

arxiv.org/abs/cond-mat/0309516v2

Physics

Condensed Matter

Superconductivity

9 pages

Scientific paper

On a basis of earlier substantiated expression for effective potential of electron-electron attraction in metals the assumption of an opportunity of formation of classically bound pairs is put forward. It was shown that in distinction from the Cooper pair, the energy of the electron pair in this approach is negative in the centrum of mass of the pair. This fact changes the pattern of the superconductivity phenomenon in the proposed model. First, the gap in the one-particle spectrum appears due to the effect of a "mean field" on the energy of electron state from the side of occupied states, the nearest neighbors over the momenta grid. Second, the condensate is formed by electron states with energies below that of the gap edge. No Bose condensation does occur in the system proceeding from the proposed model. In quasi-classical approximation Londons' hypothesis is substantiated.

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