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.
| Original language | English |
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| Pages (from-to) | 511-514 |
| Number of pages | 4 |
| Journal | Acta Physica Polonica B |
| Volume | 34 |
| Issue number | 2 |
| Publication status | Published - 1 Feb 2003 |