Properties of a magnetic superconductor with weak magnetization-application to
Department of Physics, HKUST - Kowloon, Hong Kong, PRC
Accepted: 18 December 2000
Using a Ginsburg-Landau free-energy functional, we study the H-T phase diagram of a weak magnetic superconductor, where the magnetization from the magnetic component is marginal in supporting a spontaneous vortex phase. In particular, the competition between the spiral state and spontaneous vortex phase is analysed. Our theory is applied to understand the magnetic properties of .
PACS: 74.60.Jg – Critical currents / 74.60.Ge – Flux pinning, flux creep, and flux-line lattice dynamics / 74.70.Dd – Ternary, quaternary and multinary compounds (including Chevrel phases, borocarbides etc.)
© EDP Sciences, 2001