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Title:
A model for coexistent superconductivity and ferromagnetism
Authors:
Jackiewicz, J.; Blagoev, K. B.; Bedell, K. S.
Affiliation:
AA(Boston College Department of Physics), AB(Theoretical Division Los Alamos National Laboratory Los Alamos), AC(Boston College Department of Physics)
Publication:
Philosophical Magazine, Vol. 83, p. 3247
Publication Date:
10/2003
Origin:
AUTHOR
Keywords:
superconductivity, ferromagnetism
Abstract Copyright:
(c) 2003 Ingenta
DOI:
10.1080/14786430310001606145
Bibliographic Code:
2003PMag...83.3247J

Abstract

We explore the various temperature dependences and thermodynamic quantities of a mean-field model of a ferromagnetic-superconducting system. The starting point for this model is based on an s-wave pairing scheme in the singlet channel of the superconducting state and a spontaneously broken-symmetry phase in the ferromagnetic state. We show numerically and analytically that a state of coexistence reveals itself and is favoured energetically over other possible states, and a simple phase diagram is developed. Finally, a comparison of the specific heat with experiment is shown.
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Physics
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