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Influence of Modulation Wavelength Induced Order on the Physical Properties of Nb/Rare Earth Superlattices

Published online by Cambridge University Press:  26 February 2011

L. H. Greene ,
W. L. Feldmann ,
J. M. Rowell ,
B. Batlogg ,
R. Hull  and
D. B. McWhan
L. H. Greene
Affiliation:
Bell Communications Research, 600 Mountain Ave., Murray Hill, NJ 07974
W. L. Feldmann
Affiliation:
Bell Communications Research, 600 Mountain Ave., Murray Hill, NJ 07974
J. M. Rowell
Affiliation:
Bell Communications Research, 600 Mountain Ave., Murray Hill, NJ 07974
B. Batlogg
Affiliation:
AT&T Bell Labs, 600 Mountain Ave., Murray Hill, NJ 07974
R. Hull
Affiliation:
AT&T Bell Labs, 600 Mountain Ave., Murray Hill, NJ 07974
D. B. McWhan
Affiliation:
AT&T Bell Labs, 600 Mountain Ave., Murray Hill, NJ 07974
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Abstract

We report the observation of a higher degree of preferred crystalline orientation in Nb/rare earth superlattices for modulation wavelengths in the range of 200 Å to 500 Å than that exhibited by single component films. All films and multilayers are sputter deposited onto room temperature sapphire substrates. Electronic transport measurements also show that the residual resistance ratio is higher and the room temperature resistivity is lower than for multilayers of either greater or lower periodicities. Transmission electron micrographs (TEM) showing excellent layering, grain size comparable to the layer thickness, and evidence of some degree of epitaxy are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 37: Symposium D – Layered Structures, Epitaxy, and Interfaces , 1984 , 523
Copyright
Copyright © Materials Research Society 1985

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References

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