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Far Infrared Measurements on Single Crystals, Films and Bulk Sintered High Temperature Superconductors

Published online by Cambridge University Press:  28 February 2011

T. W. Noh
Affiliation:
Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
P. E. Sulewski
Affiliation:
Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
S. G. Kaplan
Affiliation:
Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
A. J. Sievers
Affiliation:
Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
D. K. Lathrop
Affiliation:
School of Applied and Engineering Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
R. A. Buhrman
Affiliation:
School of Applied and Engineering Physics and Materials Science Center, Cornell University, Ithaca, NY 14853.2501
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Abstract

We report measurements of the reflectivity of bulk samples, films and single crystals of high Tc materials. The data are fitted with the Mattis-Bardeen theory to obtain gap values. For sintered samples we find 2Δ/kTc = 2.6, while for YBa2Cu3O7-y films and single crystals 2Δ/kTc = 6.4 and 7.7 respectively.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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Far Infrared Measurements on Single Crystals, Films and Bulk Sintered High Temperature Superconductors
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