Raman intensity in HTSC: Role of the states near the Fermi surface

Authors
Sherman, EY Ambrosch-Draxl, C
Citation
Ey. Sherman et C. Ambrosch-draxl, Raman intensity in HTSC: Role of the states near the Fermi surface, PHYSICA C, 341, 2000, pp. 2267-2268
Citations number
3
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
4
Pages
2267 - 2268
Database
ISI
SICI code
0921-4534(200011)341:<2267:RIIHRO>2.0.ZU;2-3
Abstract
We investigated the role of the states near the Fermi surface for phonon Ra man scattering in the superconducting cuprates. These states can be importa nt for the Raman intensity within the frozen-phonon approximation. This eff ect, however, is absent within the perturbative approach. The discrepancy b ecomes very large in the case of resonant Raman scattering.