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Atomic Layer Growth of High Tc (Ca,Sr)CuO2 Thin Films by Laser Mbe

Published online by Cambridge University Press:  01 January 1992

M. Kana ,
T. Kawai  and
S. Kawai
M. Kana
Affiliation:
The Institute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan
T. Kawai
Affiliation:
The Institute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan
S. Kawai
Affiliation:
The Institute of Scientific and Industrial Research, Osaka University, 8–1, Mihogaoka, Ibaraki, Osaka 567, Japan
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Abstract

Resistive and magnetic anomalies were observed at 150-170K in Ca0.3Sr0.7CuO2 thin films prepared by atomic-layer stacking using laser molecular beam epitaxy. Systematic current density dependence of the resistivity was observed below these temperatures with clear resistivity drops. At the same temperature range, the films showed diamagnetic response and hysteresis of magnetization between zero-field cooling and field cooling process. These behaviors suggest that the anomalies are due to high temperature superconductivity around 150-170K in the Ca0.3Sr0.7CuO2 thin films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 285: Symposium I – Laser Ablation in Materials Processing–Fundamentals and Applications , 1992 , 257
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

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