DYNAMICS OF THE C-POLARIZED INFRARED-ACTIVE MODES IN LA2-XSRXCUO4

Authors
HENN R WITTLIN A CARDONA M UCHIDA S
Citation
R. Henn et al., DYNAMICS OF THE C-POLARIZED INFRARED-ACTIVE MODES IN LA2-XSRXCUO4, Physical review. B, Condensed matter, 56(10), 1997, pp. 6295-6301
Citations number
37
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
10
Year of publication
1997
Pages
6295 - 6301
Database
ISI
SICI code
0163-1829(1997)56:10<6295:DOTCIM>2.0.ZU;2-N
Abstract
We have studied the c-polarized optical phonons of high quality single crystals of La2-xSrxCuO4 with doping concentrations ranging from the underdoped to the overdoped regime (x=0.1,0.12,0.15,0.18,0.2) at tempe ratures between 10 and 300 K. We discuss the dependence of all observe d phonon modes on temperature as well as on doping. We find no indicat ion for a coupling of the zone-center phonons to the electronic contin uum, either in the normal or in the superconducting state.