Temperature dependence of Raman scattering in stabilized cubic zirconia

Cai, J; Raptis, C; Raptis, YS; Anastassakis, E

dc.contributor.author	Cai, J	en
dc.contributor.author	Raptis, C	en
dc.contributor.author	Raptis, YS	en
dc.contributor.author	Anastassakis, E	en
dc.date.accessioned	2014-03-01T01:11:31Z
dc.date.available	2014-03-01T01:11:31Z
dc.date.issued	1995	en
dc.identifier.issn	0163-1829	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11681
dc.subject	Raman Scattering	en
dc.subject	Temperature Dependence	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	WAVELENGTH OPTICAL PHONONS	en
dc.subject.other	ELEVATED-TEMPERATURES	en
dc.subject.other	FLUORITE STRUCTURE	en
dc.subject.other	LIGHT-SCATTERING	en
dc.subject.other	SPECTRA	en
dc.subject.other	ZRO2-Y2O3	en
dc.subject.other	SPECTROSCOPY	en
dc.subject.other	COEFFICIENTS	en
dc.subject.other	CRYSTALS	en
dc.subject.other	DIAMOND	en
dc.title	Temperature dependence of Raman scattering in stabilized cubic zirconia	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.51.201	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.51.201	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	The temperature dependence of Raman spectra of cubic yttria-stabilized zirconia (YSZ) for three yttria concentrations (10, 15, and 20 wt %) is investigated in the range 40 1470 K. The variation of the spectra with temperature implies that first-order scattering (one-phonon processes) is dominant in this material, providing further evidence that the broad features observed in the spectra are caused mainly by partial lattice disorder rather than by combination (higher-order) processes. The high-temperature phase of YSZ is entirely stable in this range and remains cubic throughout. The temperature-induced frequency shifts of the band at 600 cm-1 (attributed to the F2g zone-center optic mode) are determined for the three different yttria concentrations. Furthermore, using uniaxial stress data as well, the volume contribution to such shifts is calculated and compared to the lattice anharmonicity contribution. It is found that the volume contribution is larger than the total effect (by a factor of about 2) for all three compositions at 300 K, implying that the bonding in cubic YSZ has ionic character. © 1995 The American Physical Society.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review B	en
dc.identifier.doi	10.1103/PhysRevB.51.201	en
dc.identifier.isi	ISI:A1995QB37700027	en
dc.identifier.volume	51	en
dc.identifier.issue	1	en
dc.identifier.spage	201	en
dc.identifier.epage	209	en