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Growth of Sr1−xNdxCuOy Thin Films by Rf-Magnetron Sputtering and Pulsed-Laser Deposition

Published online by Cambridge University Press:  26 February 2011

Nobuyuki Sugii ,
Michiharu Ichikawa ,
Koichi Kubo ,
Takeshi Sakurai ,
Kiyoshi Yamamoto  and
H. Yamauchi
Nobuyuki Sugii
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
Michiharu Ichikawa
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
Koichi Kubo
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
Takeshi Sakurai
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
Kiyoshi Yamamoto
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
H. Yamauchi
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center 10–13 Shinonome 1-chome, Koto-ku, Tokyo 135, JAPAN
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Abstract

Sr1−xNdxCuOy thin films are grown on SrTiO3 substrates by rf-magnetron sputtering and pulsed-laser deposition. The sputter-deposited film with x=0 has an “infinite-layer” structure whose lattice constants are: α=0.390 nm and c=0.347 nm. When x is larger than 0.1, the films contain a phase of the Sr14CuO24O41 structure. The laser-deposited films of Sr1−xNdxCuOy with x≤.075 were single phase of the “infinite-layer” structure. The lattice parameter c decreased and the lattice parameter αincreased, as the Nd content, x, increased. The films with α=0.10 and 0.125 exhibited superconducting onset temperatures around 26 K. Weak Meissner signals were observed for these films at temperatures below 30 K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 495
Copyright
Copyright © Materials Research Society 1992

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References

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