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Title: Properties of a magnetic superconductor with weak magnetization : application to ErNi2B2C
Authors: Ng, Tai-Kai
Leung, Wai-Tak
Keywords: Magnetic superconductor
Spiral state
Spontaneous vortex phase
Magnetic properties
Issue Date: Apr-2000
Abstract: 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 absence of external magnetic field. In particular, the competition between the spiral state and spontaneous vortex phase is analysed. Our theory is applied to understand the magnetic properties of ErNi2B2C.
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