Fluctuation-Induced First-Order Phase Transition in Ferromagnetic Superconductors

Document Type

Article

Publication Date

1984

Abstract

The critical behaviour of a ferromagnetic superconductor is studied using a field-theoretical renormalisation group method. The authors show that, within the epsilon expansion, the coupled superconductor-magnet system exhibits no real stable fixed points, indicating that the system undergoes a first-order superconducting-ferromagnetic transition due to the fluctuating internal induction field. Recent experiments on the rare-earth ternary compounds (Er1-xHox)Rh4B4 and HoMo6S8 are compared with the predictions of the theory.

DOI

10.1088/0305-4608/14/11/020

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