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Infrared properties of the high Tc superconductor Tl2Ba2CaCu2O8

Published online by Cambridge University Press:  31 January 2011

H. J. Ye ,
R. P. McCall ,
J. M. Leng ,
C. G. Li ,
Yu-Ling Zhang ,
Ning Cao ,
Jia-Gi Zheng  and
S. S. Xie
H. J. Ye
Affiliation:
Department of Physics, The Ohio State University, Columbus, Ohio 43210
R. P. McCall
Affiliation:
Department of Physics, The Ohio State University, Columbus, Ohio 43210
J. M. Leng
Affiliation:
Department of Physics, The Ohio State University, Columbus, Ohio 43210
C. G. Li
Affiliation:
Department of Physics, The Ohio State University, Columbus, Ohio 43210
Yu-Ling Zhang
Affiliation:
Institute of Physics, Academia Sinica, Beijing, China
Ning Cao
Affiliation:
Institute of Physics, Academia Sinica, Beijing, China
Jia-Gi Zheng
Affiliation:
Institute of Physics, Academia Sinica, Beijing, China
S. S. Xie
Affiliation:
Institute of Physics, Academia Sinica, Beijing, China
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Abstract

We report the infrared reflection and absorption spectra of the high Tc superconductor Tl2Ba2CaCu2O8 in the temperature range from 10 K to 300 K. For temperatures above 100 K, the reflection spectra show only small changes with temperature. Just below 100 K, the reflectance suddenly increases for energies below 210 cm−1 with very little change as the temperature is further decreased. Several peaks corresponding to normal modes of the material are observed in both reflection and absorption spectra.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 8 , August 1990 , pp. 1616 - 1619
Copyright
Copyright © Materials Research Society 1990

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