Dynamics of the c-polarized infrared-active modes in La{sub 2{minus}x}Sr{sub x}CuO{sub 4}
Journal Article
·
· Physical Review, B: Condensed Matter
- Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, 70569 Stuttgart (Germany)
- Superconductivity Research Course, University of Tokyo, Yayoi 2-11-16, Bunkyo-Ku, Tokyo 113 (Japan)
We have studied the c-polarized optical phonons of high quality single crystals of La{sub 2{minus}x}Sr{sub x}CuO{sub 4} with doping concentrations ranging from the underdoped to the overdoped regime (x=0.1,0.12,0.15,0.18,0.2) at temperatures between 10 and 300 K. We discuss the dependence of all observed phonon modes on temperature as well as on doping. We find no indication for a coupling of the zone-center phonons to the electronic continuum, either in the normal or in the superconducting state. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 542253
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 56; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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