Pressure-induced amorphization of germanium diselenide

Popovic, ZV; Raptis, YS; Anastassakis, E; Jaksic, Z

dc.contributor.author	Popovic, ZV	en
dc.contributor.author	Raptis, YS	en
dc.contributor.author	Anastassakis, E	en
dc.contributor.author	Jaksic, Z	en
dc.date.accessioned	2014-03-01T01:14:04Z
dc.date.available	2014-03-01T01:14:04Z
dc.date.issued	1998	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12853
dc.subject	β-GeSe2 single crystal	en
dc.subject	Amorphization	en
dc.subject	Raman scattering spectra	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Amorphization	en
dc.subject.other	Crystal structure	en
dc.subject.other	Hydrostatic pressure	en
dc.subject.other	Order disorder transitions	en
dc.subject.other	Pressure effects	en
dc.subject.other	Raman spectroscopy	en
dc.subject.other	Single crystals	en
dc.subject.other	Germanium diselenide	en
dc.subject.other	Semiconducting selenium compounds	en
dc.title	Pressure-induced amorphization of germanium diselenide	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0022-3093(98)00172-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0022-3093(98)00172-0	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	We have measured the Raman scattering spectra of beta-GeSe2 single crystal thigh-temperature modification with layered crystal structure) under hydrostatic pressures to 12.5 GPa at room temperature. According to the Raman spectra, the pressure increase produces transformation of the layered crystal structure into a fully disordered structure (at 6.2 GPa). A further increase of the pressure to 7 GPa yields indications of a phase transition from the disordered phase to the alpha-GeSe2 (low-temperature modification of GeSe2 with three dimensional crystal structure), At 8 GPa, this modification transforms back to the disordered phase. Reversibility of the phase changes, upon releasing the pressure, depends on the maximum pressure. (C) 1998 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Crystalline Solids	en
dc.identifier.doi	10.1016/S0022-3093(98)00172-0	en
dc.identifier.isi	ISI:000074599000026	en
dc.identifier.volume	227-230	en
dc.identifier.issue	PART 2	en
dc.identifier.spage	794	en
dc.identifier.epage	798	en