Raman study of the heavy fermion system URu2Si2 at low temperatures and high hydrostatic pressures

Lampakis, D; Palles, D; Liarokapis, E; Mydosh, JA

dc.contributor.author	Lampakis, D	en
dc.contributor.author	Palles, D	en
dc.contributor.author	Liarokapis, E	en
dc.contributor.author	Mydosh, JA	en
dc.date.accessioned	2014-03-01T01:25:02Z
dc.date.available	2014-03-01T01:25:02Z
dc.date.issued	2006	en
dc.identifier.issn	0921-4526	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17515
dc.subject	Heavy fermions	en
dc.subject	Pressure effects	en
dc.subject	Raman spectroscopy	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Hydrostatic pressure	en
dc.subject.other	Low temperature effects	en
dc.subject.other	Phase separation	en
dc.subject.other	Pressure effects	en
dc.subject.other	Raman spectroscopy	en
dc.subject.other	Single crystals	en
dc.subject.other	Heavy fermions	en
dc.subject.other	Hydrostatic pressure measurements	en
dc.subject.other	Low temperatures	en
dc.subject.other	Fermions	en
dc.title	Raman study of the heavy fermion system URu2Si2 at low temperatures and high hydrostatic pressures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.physb.2006.01.362	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.physb.2006.01.362	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	A systematic Raman study has been carried out on single crystals of the heavy fermion URu2Si2 compound at low temperatures (down to similar to 6 K) and high hydrostatic pressures (up to similar to 5 GPa). At ambient pressures and below 20 K, small modifications in the Si A(1g) mode have been observed. With increasing pressure, this mode shifts to higher energies at a high increment rate (> 6cm(-1)/GPa) at room temperature, while the pressure dependence of its linewidth shows an anomalous behavior decreasing suddenly above similar to 2GPa. Hydrostatic pressure measurements at similar to 2.4 GPa and low temperatures have revealed a broad weak peak at similar to 370cm(-1), which is absent at ambient pressures and disappears above similar to 200 K. These effects can be related with a pressure-dependent phase separation. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physica B: Condensed Matter	en
dc.identifier.doi	10.1016/j.physb.2006.01.362	en
dc.identifier.isi	ISI:000238426600247	en
dc.identifier.volume	378-380	en
dc.identifier.issue	SPEC. ISS.	en
dc.identifier.spage	578	en
dc.identifier.epage	580	en