One hump or two? Stoner's camel as a model of UGe2

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Authors

Abstract

We present a model of changing Fermi surface geometry in a ferromagnetic, spin-split environment, where the control parameter is the Stoner exchange energy. A two-peak density of states, here obtained from a quasione-dimensional bandstructure allows two jumps in magnetisation. The jump at finite magnetisation can be first order, and may occur near a maximum in the transition temperature for a triplet superconducting instability. Our motivation is the ferromagnetic superconductor, UGe2.

Details

Original languageEnglish
Pages (from-to)511-514
Number of pages4
JournalActa Physica Polonica B
Volume34
Issue number2
Publication statusPublished - 1 Feb 2003