Elastic deformations and sound in anisotrope superconductors near critical temperature

Influence of elastic deformations on characteristics of the anisotrope superconductors with one-axis anisotropy, to which belong many high-temperature superconductors, were investigated in the frames of elasticity theory and Ginsburg-Landau theory. Propagation and damping of sound in these superconductors near critical temperature Tc was considered. Sound velocity makes a jump and damping increases at Tc point. It was shown that the magnetic field decreases in value and changes in direction when it penetrates in anisotrope superconductor. 13 refs. (author)