LIGHT-SCATTERING MECHANISM IN (Y PR)BA2CU3O7 SUPERLATTICES/

Authors
SHERMAN E LI R FEILE R ADRIAN H JAKOB G
Citation
E. Sherman et al., LIGHT-SCATTERING MECHANISM IN (Y PR)BA2CU3O7 SUPERLATTICES/, Journal of low temperature physics, 99(3-4), 1995, pp. 263-265
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
99
Issue
3-4
Year of publication
1995
Pages
263 - 265
Database
ISI
SICI code
0022-2291(1995)99:3-4<263:LMI(PS>2.0.ZU;2-S
Abstract
An extra peak was observed in the region of 290-320 cm(-1) of Raman sp ectra of a high quality (001) (Y2Pr1)(Ba2Cu3O7) superlattice in Z(X',Y ')($) over bar Z geometry at low temperature. A was identified as an e ven combination of B-1u vibrations in Y-subcells. We propose an asymme tric field mechanism for the Raman intensity of this extra phonon.