The infrared properties of Bi2.07Sr1.8CuO6+delta and Bi2Sr1.6La0.4CuO6+delta superconductors

Authors
Hudakova, N Sedmidubsky, D
Citation
N. Hudakova et D. Sedmidubsky, The infrared properties of Bi2.07Sr1.8CuO6+delta and Bi2Sr1.6La0.4CuO6+delta superconductors, PHYSICA B, 261, 1999, pp. 552-554
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
261
Year of publication
1999
Pages
552 - 554
Database
ISI
SICI code
0921-4526(199901)261:<552:TIPOBA>2.0.ZU;2-A
Abstract
The infrared reflectivity of the bismuth-based high-T-c, superconductors Bi 2.07Sr1.8CuO6 + delta (2201) with T-c = 7 K and Bi2Sr1.6La0.4CUO6 + delta(L a2201) with T-c = 30 K have been measured between 25 and 8000 cm(-1) at tem peratures between 5 and 300 K. The temperature- and frequency-dependent far -infrared part of the spectrum is analyzed. We discuss the influence of La presence on the infrared-active phonons. (C) 1999 Elsevier Science B.V. All rights reserved.