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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.

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

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