Pressure dependence of the critical field in indium single crystals

Abstract

The pressure dependence of the critical magnetic field in single crystals of indium has been calculated from measurements of length changes at the transition. We find where t= T/T_c and p _∥ and p _⊥ are uniaxial pressures parallel and perpendicular to the tetragonal axis. The anisotropy disappears when the effect of equal length changes rather than equal pressures in different directions is considered.