Abstract

Abstract This chapter demonstrates the potentialities of the quasiclassical method for selected problems in the theory of stationary superconductivity. The Ginzburg–Landau equations are derived, the upper critical field of dirty superconductors at arbitrary temperatures is calculated, and the gapless regime in superconductors with magnetic impurities is discussed. Effects of impurities on the critical temperature and the density of states in d-wave superconductors are discussed. The energy spectra of excitations in vortex cores of s-wave and d-wave superconductors are calculated.

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