RAMAN CONTINUUM IN HIGH-T-C SUPERCONDUCTORS

Authors
Citation
H. Ghosh et M. Sardar, RAMAN CONTINUUM IN HIGH-T-C SUPERCONDUCTORS, Physica. B, Condensed matter, 224(1-4), 1996, pp. 541-543
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
09214526
Volume
224
Issue
1-4
Year of publication
1996
Pages
541 - 543
Database
ISI
SICI code
0921-4526(1996)224:1-4<541:RCIHS>2.0.ZU;2-9
Abstract
Experimentally, Raman continuum for A(g) and B-g geometry exhibits pea ks far apart from each other (about 80-150 cm(-1)) in frequency. The f ormer is insensitive to doping over a small range where T-c does not v ary much whereas the latter shifts towards higher frequencies. We calc ulate the electronic Raman scattering intensities using the 'modified spin bag model'. We show that the calculated results have natural expl anation to the observed anomalous peak separation and peculiar doping dependence.