Hydrostatic pressure induced lattice effects in La2-xSr xCuO4

Lampakis, D; Siranidi, E; Liarokapis, E; Panagopoulos, C

dc.contributor.author	Lampakis, D	en
dc.contributor.author	Siranidi, E	en
dc.contributor.author	Liarokapis, E	en
dc.contributor.author	Panagopoulos, C	en
dc.date.accessioned	2014-03-01T01:28:39Z
dc.date.available	2014-03-01T01:28:39Z
dc.date.issued	2008	en
dc.identifier.issn	17426588	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18892
dc.subject	Hydrostatic Pressure	en
dc.title	Hydrostatic pressure induced lattice effects in La2-xSr xCuO4	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1742-6596/108/1/012024	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1742-6596/108/1/012024	en
heal.identifier.secondary	012024	en
heal.publicationDate	2008	en
heal.abstract	Micro-Raman measurements under hydrostatic pressures up to ∼6 GPa have been carried out on high-quality La2-xSrxCuO4 polycrystalline compounds with Sr concentration up to x0.24. The zz scattering polarization has been investigated at room temperature, where two strong modes due to La/Sr and the apex oxygen atoms are observed. The energy of the strong modes increases almost linearly with pressure for the Sr concentrations studied. Modifications in the increment rate dω/dp have been detected depending on the amount of doping. Finally, measurements at low temperatures denote that the application of pressure minimizes the distortions of the CuO6 octahedra. © 2008 IOP Publishing Ltd.	en
heal.journalName	Journal of Physics: Conference Series	en
dc.identifier.doi	10.1088/1742-6596/108/1/012024	en
dc.identifier.volume	108	en
dc.identifier.issue	1	en