Interplay of staggered SC with CDW in a fully polarized ferromagnet

Georgiou, M; Varelogiannis, G; Thalmeier, P

dc.contributor.author	Georgiou, M	en
dc.contributor.author	Varelogiannis, G	en
dc.contributor.author	Thalmeier, P	en
dc.date.accessioned	2014-03-01T01:26:30Z
dc.date.available	2014-03-01T01:26:30Z
dc.date.issued	2007	en
dc.identifier.issn	0921-4534	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18108
dc.subject	staggered superconductivity	en
dc.subject	UGe2	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Ferromagnetic materials	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Pressure effects	en
dc.subject.other	Superconductivity	en
dc.subject.other	Gap equations	en
dc.subject.other	Particle hole asymmetry	en
dc.subject.other	Staggered superconductivity	en
dc.subject.other	Charge density waves	en
dc.title	Interplay of staggered SC with CDW in a fully polarized ferromagnet	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.physc.2007.03.207	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.physc.2007.03.207	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	We have studied the competition of charge density waves (CDW) and superconductivity (SC) in a fully polarized ferromagnetic (FM) medium. Motivation for this study was the observation of SC deep in the FM state of UGe2. Assuming the spins frozen, there are four possible SC order parameters in the triplet channel both at zone center (i.e. with zero total momentum) and at zone boundary (i.e. staggered SC) that may compete with four possible CDW order parameters forming 16 different pairs of competing states. Emphasis is given on the proper consideration of the effect of particle-hole asymmetry that may simulate the effect of pressure in UGe2. Four different systems of coupled self consistent gap equations describe four different competing pairs of CDW and SC order parameters. We focus here on the situations in which staggered SC is a possible state and we study the influence of particle-hole asymmetry on its competition with charge density waves. We obtain cases in which CDW and staggered SC coexist as well as cascades of transitions induced by particle-hole asymmetry that exhibit striking similarities with those seen in UGe2 by applying pressure. Our analysis suggests that SC in UGe2 is staggered competing with a CDW. (c) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physica C: Superconductivity and its Applications	en
dc.identifier.doi	10.1016/j.physc.2007.03.207	en
dc.identifier.isi	ISI:000249870600148	en
dc.identifier.volume	460-462 II	en
dc.identifier.issue	SPEC. ISS.	en
dc.identifier.spage	1033	en
dc.identifier.epage	1034	en