Magnetic excitations in the ferromagnetic superconductor UGe2 under pressure.

Michal Kepa, D. A. Sokolov, M. Boehm, A. D. Huxley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ferromagnetism and superconductivity coexist in UGe2 under pressures in the range of 10-16 kbar. Here, equal spin electrons are paired to give a spin triplet state but the pairing mechanism is still not verified experimentally. The work presented here attempts to verify whether the longitudinal magnetic fluctuations associated with a magnetic transition within the ferromagnetic state might be responsible for the electron pairing. We show that the energy scale of these fluctuations must be smaller than those associated with the second order phase transition at the Curie temperature. Furthermore, there is no significant change of the energy scale of the fluctuations at the Curie temperature as a function of pressure.

Original languageEnglish
Title of host publication27TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT27), PTS 1-5
EditorsE Calzetta
Place of PublicationBRISTOL
PublisherIOP Publishing Ltd.
Number of pages4
DOIs
Publication statusPublished - 2014
Event27th International Conference on Low Temperature Physics (LT) - Buenos Aires, Argentina
Duration: 6 Aug 201413 Aug 2014

Publication series

NameJournal of Physics Conference Series
PublisherIOP PUBLISHING LTD
Volume568
ISSN (Print)1742-6588

Conference

Conference27th International Conference on Low Temperature Physics (LT)
Country/TerritoryArgentina
Period6/08/1413/08/14

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