NORMAL-MODES STUDY OF HGBA2CA2CU3O8-CRYSTALS BY A MICRO-RAMAN ANALYSIS(DELTA SINGLE)

Authors
SACUTO A LEBON A COLSON D BERTINOTTI A MARUCCO JF VIALLET V
Citation
A. Sacuto et al., NORMAL-MODES STUDY OF HGBA2CA2CU3O8-CRYSTALS BY A MICRO-RAMAN ANALYSIS(DELTA SINGLE), Physica. C, Superconductivity, 259(3-4), 1996, pp. 209-217
Citations number
19
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
259
Issue
3-4
Year of publication
1996
Pages
209 - 217
Database
ISI
SICI code
0921-4534(1996)259:3-4<209:NSOHBA>2.0.ZU;2-4
Abstract
Polarized-light micro-Raman scattering (PLMRS) measurements have been performed on pre- and post-annealed Hg-1223 single crystals with T-c = 120 K and 135 K, respectively. Group-theoretical investigations, comp arative analyses of the Hg-1223 structure to the Tl-1223 isomorphous o ne and arguments on electron-phonon interaction have permitted us to i dentify the five Alg normal modes and detect for the first time the si x Eg modes of the Hg-1223 system, No Blg mode has been observed.