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Superconducting Properties of v/cr Artificial Metallic Superlattices

Published online by Cambridge University Press:  26 February 2011

B. M. Davis ,
J. Q. Zheng ,
M. R. Ma ,
B. Y. Jin ,
J. E. Hilliard  and
J. B. Ketterson
B. M. Davis
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
J. Q. Zheng
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
M. R. Ma
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
B. Y. Jin
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
J. E. Hilliard
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
J. B. Ketterson
Affiliation:
Materials Research Center, Northwestern university, Evanston IL, 60201
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Abstract

We have studied the superconducting properties of V/Cr superlattices. Superlattices of V100Crx, V150Crx, and V200Crx, with x varying between 3 and 80 atomic planes have been prepared. The films have a strong (110) texture and were grown on sapphire substrates at 250°C in an ultra-high vacuum system. The zero field transition temperature of the V150Crx and V200Crx, but not the V100Crx films have been adequately modeled using Werthamer's theory for proximity effect coupled films. The films have a dimensional crossover in the parallel upper critical field when the thickness of the Cr layers is about 60 atomic planes.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 77: Symposium D – Interfaces, Superlattices, and Thin Films , 1986 , 509
Copyright
Copyright © Materials Research Society 1987

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References

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