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Scanning Auger microscopy analysis of 90 K Y–Ba–Cu–O superconductors

Published online by Cambridge University Press:  31 January 2011

L. Cota ,
L. Morales de la Garza ,
G. Hirata ,
L. Martínez ,
E. Orozco ,
E. Carrillo ,
A. Mendoza ,
J. L. Albarrán ,
J. Fuentes-Maya  and
J. L. Boldú
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L. Cota
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
L. Morales de la Garza
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
G. Hirata
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
L. Martínez
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
E. Orozco
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
E. Carrillo
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
A. Mendoza
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
J. L. Albarrán
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
J. Fuentes-Maya
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
J. L. Boldú
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
J. G. Pérez-Ramírez
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
R. Pérez
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
J. Reyes Gasga
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
M. Avalos
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
M. José-Yacamán
Affiliation:
Instituto de Física, Universidad Nacional Autonoma de México, Apdo. Postal 20-364, México, D.F. 01000, México
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Abstract

The oxide superconductor Y–Ba–Cu–O is studied using Auger scanning microscopy. The chemical depth profiles of the samples were obtained. It is concluded that two phases are present in the sample, one corresponding to the standard composition and another that is Ba enriched. The first shows a platelet shape and the second a granular appearence that covers the surface of the sample.

Type
Articles
Information
Journal of Materials Research , Volume 3 , Issue 3 , June 1988 , pp. 417 - 420
Copyright
Copyright © Materials Research Society 1988

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References

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