Raman study of R0.5Pr0.5Ba2Cu3O7- (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	2014-03-01T01:10:11Z
dc.date.available	2014-03-01T01:10:11Z
dc.date.issued	1994	en
dc.identifier.issn	01631829	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11332
dc.subject	Rare Earth	en
dc.title	Raman study of R0.5Pr0.5Ba2Cu3O7- (R=Y, rare earth)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.49.12151	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.49.12151	en
heal.publicationDate	1994	en
heal.abstract	The polarized Raman scattering of the R0.5Pr0.5Ba2Cu3O7-<FOR VERIFICATION> series (R=La, Pr, Nd, Sm, Eu, Gd, Dy, Y, Ho, Er, Tm, Yb, Lu; <FOR VERIFICATION>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 O(2),O(3) out-of-phase vibrations. It was also established that the Ba (xx,Ag) 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. © 1994 The American Physical Society.	en
heal.journalName	Physical Review B	en
dc.identifier.doi	10.1103/PhysRevB.49.12151	en
dc.identifier.volume	49	en
dc.identifier.issue	17	en
dc.identifier.spage	12151	en
dc.identifier.epage	12158	en