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Flux Trapped State Versus Glassy State in Superconducting BaErCuO and BaYCuTiO

Published online by Cambridge University Press:  28 February 2011

Sang Boo Nam
Sang Boo Nam*
Affiliation:
University Research Center, Wright State University, Dayton, OH 45435 and AFWAL/POOC, Bldg. 450, WPAFB, OH 45433, U. S. A.
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Abstract

The temperature dependent magnetization, M(T), of superconducting BaErCuO and BaYCuTiO was measured via the BTi SQUID susceptometer. In the zero field cooling case, M(T) of BaErCuO was found to be similar to that of Pb. But, M(T) of BaYCuTiO was found to decrease rapidly with T and be almost linear in T. However, in the field cooling case the fluxoids were found to be trapped at all T below Tc, and its amount was found to depend on Ts at which the sample starts to be cooled, as observed in Pb. The ergodic limiting points were not observed within the chosen parameters. The irreversibility of magnetization observed in both BaErCuO and BaYCuTiO is attributed to the fluxoids, trapped during the field cooling process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 431
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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