Raman probing of thermally induced effects on La2-xSrxCuO4 single crystals

Raptis, C; McGreevy, RL; Haycock, PW; Chen, C; Wanklyn, BM

dc.contributor.author	Raptis, C	en
dc.contributor.author	McGreevy, RL	en
dc.contributor.author	Haycock, PW	en
dc.contributor.author	Chen, C	en
dc.contributor.author	Wanklyn, BM	en
dc.date.accessioned	2014-03-01T01:07:39Z
dc.date.available	2014-03-01T01:07:39Z
dc.date.issued	1989	en
dc.identifier.issn	0921-4534	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10089
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0024751873&partnerID=40&md5=53e52f1673eb3583d2c62704272d7b51	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Ceramic Materials	en
dc.subject.other	Lanthanum Compounds	en
dc.subject.other	Raman Scattering	en
dc.subject.other	High Temperature Superconductors	en
dc.subject.other	Lanthanum Strontium Copper Oxides	en
dc.subject.other	Oxide Superconductors	en
dc.subject.other	Single Crystals	en
dc.subject.other	Superconducting Materials	en
dc.title	Raman probing of thermally induced effects on La2-xSrxCuO4 single crystals	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1989	en
heal.abstract	We have investigated the effects of long oxygen annealing of flux grown La2-xSrxCuO4 single crystals, using their Raman scatterin as a probe. The as-grown crystals display very weak Raman activity, whereas the annealed crystals show three well defined Raman peaks which disappear upon polishing a layer of ∼10 μm from the surface, indicating a low oxygen diffusion rate from surface to bulk. The Raman scattering exhibited by the annealed crystals is attributed to surface defects or/and new phases formed during the annealing. After annealing, the crystals were found to display superconductivity at 8 K. © 1989.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physica C: Superconductivity and its applications	en
dc.identifier.isi	ISI:A1989AY88100013	en
dc.identifier.volume	161	en
dc.identifier.issue	1	en
dc.identifier.spage	83	en
dc.identifier.epage	87	en