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Superconducting High TC Thin Films Prepared by Laser Deposition: Comparison of Laser Sources

Published online by Cambridge University Press:  28 February 2011

L. Lynds ,
B. R. Weinberger ,
M. P. Lindsay  and
D. M. Potrepka
L. Lynds
Affiliation:
United Technologies Research Center, E. Hartford, CT 06108
B. R. Weinberger
Affiliation:
United Technologies Research Center, E. Hartford, CT 06108
M. P. Lindsay
Affiliation:
United Technologies Research Center, E. Hartford, CT 06108
D. M. Potrepka
Affiliation:
United Technologies Research Center, E. Hartford, CT 06108
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Abstract

A comparison of the energetics and stoichiometry of effluents from YBa2CU307‐x targets ablated by Nd:YAG (1064 nm) and excimer (248 nm) lasers is presented. NdrYAG ablative processes are characterized by specularly directed neutral atom/cluster formation with translational energies in the range of 2 ‐ 20 eV. In sharp contrast, excimer ablation leads mainly to highly forward directed atomic ions with centroid energies between 200 and 400 eV. Analysis of the energetics indicates that different mechanisms are at play but both processes are non‐equilibrium in nature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 443
Copyright
Copyright © Materials Research Society 1990

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References

1 Cheung, J. T. and Sankur, H., CRC Critical Review (Solid State Material Science) 15, 109 (1988).Google Scholar
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3 Lynds, L., Weinberger, B. R., Peterson, G.G. and Krasinski, H. A., Appl. Phys. Lett. 52, 320 (1988).Google Scholar
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