Vibrational Properties of SnGeS3 under High Pressure

Inoue, K; Stergiou, V; Raptis, YS; Popovic, ZV

dc.contributor.author	Inoue, K	en
dc.contributor.author	Stergiou, V	en
dc.contributor.author	Raptis, YS	en
dc.contributor.author	Popovic, ZV	en
dc.date.accessioned	2014-03-01T01:17:18Z
dc.date.available	2014-03-01T01:17:18Z
dc.date.issued	2001	en
dc.identifier.issn	0031-9015	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14447
dc.subject	High pressure	en
dc.subject	Raman spectroscopy	en
dc.subject	SnGeS3	en
dc.subject	Valence-force-field and bond-polarisability model	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	RAMAN-SCATTERING	en
dc.subject.other	CRYSTALS	en
dc.subject.other	GES2	en
dc.subject.other	TEMPERATURE	en
dc.subject.other	DEPENDENCE	en
dc.title	Vibrational Properties of SnGeS3 under High Pressure	en
heal.type	journalArticle	en
heal.identifier.primary	10.1143/JPSJ.70.2168	en
heal.identifier.secondary	http://dx.doi.org/10.1143/JPSJ.70.2168	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	We measured Raman spectra of SnGeS3 single crystal under hydrostatic pressure up to 19.5 GPa. Fourteen of the seventeen modes observed at low pressures disappear around 7 GPa. The remaining three modes persist up to 11.5 GPa. No scattering activity is found above 19.5 GPa. All these changes, as well as color changes, are reversible. The intensities of the Raman modes of SnGeS3 were calculated using valence-force-field and a bond polarizability model. Ve have shown that the interchain interaction is responsible for the intensity exchange of 346 cm(-1) and 364.5 cm(-1) modes under pressure. An assignment to internal and external modes is also proposed.	en
heal.publisher	PHYSICAL SOCIETY JAPAN	en
heal.journalName	Journal of the Physical Society of Japan	en
dc.identifier.doi	10.1143/JPSJ.70.2168	en
dc.identifier.isi	ISI:000170077600051	en
dc.identifier.volume	70	en
dc.identifier.issue	7	en
dc.identifier.spage	2168	en
dc.identifier.epage	2174	en