Physics – Condensed Matter – Superconductivity
Scientific paper
2010-10-09
Physics
Condensed Matter
Superconductivity
Scientific paper
In the present paper, the method for describing inhomogeneous states with local translational symmetry is proposed, based on the symmetry-dependent interaction between the order parameter (OP) and compensating field in the phenomenological Landau theory. It is shown that dimensionality of the compensating field in the extended derivative is associated with representation of the OP and does not coincide with the dimensionality of the derivative itself. This results in the correct definition of transformational properties of physical fields in the local Landau theory and in the equations of continuum theory of dislocations in the system of equations of state. The mechanism is proposed to construct the Ginzburg-Landau potential for states with local translational symmetry that correspond to HTS states. It is shown that minimal interaction between the superconducting OP and tensor compensating field is responsible for electron-phonon interaction in the BCS model.
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