RAMAN-STUDY OF R0.5PR0.5BA2CU3O7-DELTA (R=Y, RARE-EARTH)

BOGACHEV, G; ABRASHEV, M; ILIEV, M; POULAKIS, N; LIAROKAPIS, E; MITROS, C; KOUFOUDAKIS, A; PSYHARIS, V

dc.contributor.author	BOGACHEV, G	en
dc.contributor.author	ABRASHEV, M	en
dc.contributor.author	ILIEV, M	en
dc.contributor.author	POULAKIS, N	en
dc.contributor.author	LIAROKAPIS, E	en
dc.contributor.author	MITROS, C	en
dc.contributor.author	KOUFOUDAKIS, A	en
dc.contributor.author	PSYHARIS, V	en
dc.date.accessioned	2014-03-01T01:42:55Z
dc.date.available	2014-03-01T01:42:55Z
dc.date.issued	1994	en
dc.identifier.issn	0163-1829	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23987
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	HIGH-TC SUPERCONDUCTORS	en
dc.subject.other	SINGLE-PHASE Y1-XPRXBA2CU3O7-DELTA	en
dc.subject.other	NORMAL-STATE PROPERTIES	en
dc.subject.other	ELECTRONIC-STRUCTURE	en
dc.subject.other	SCATTERING	en
dc.subject.other	YBA2CU3O7	en
dc.subject.other	CONTINUUM	en
dc.subject.other	CRYSTALS	en
dc.subject.other	ENERGY	en
dc.subject.other	MODES	en
dc.title	RAMAN-STUDY OF R0.5PR0.5BA2CU3O7-DELTA (R=Y, RARE-EARTH)	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	The polarized Raman scattering of the R0.5Pr0.5Ba2Cu3O7-delta series (R = La, Pr, Nd, Sm, Eu, Gd, Dy, Y, Ho, Er, Tm, Yb, Lu; delta approximately 0) which undergoes a superconductor-to-nonsuperconductor transition between R = Gd and Dy was studied. It was found that the appearance of superconductivity correlates with observation of a two-mode behavior of the R-ion-size-sensitive B1g-like mode of 0(2),O(3) out-of-phase vibrations. It was also established that the Ba (xx,A(g)) phonon line is of asymmetrical (Fano) shape for all R. The origin of the Fano effect usually attributed to interference with an electronic continuum is discussed.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	PHYSICAL REVIEW B	en
dc.identifier.isi	ISI:A1994NL64300069	en
dc.identifier.volume	49	en
dc.identifier.issue	17	en
dc.identifier.spage	12151	en
dc.identifier.epage	12158	en