Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-17T18:04:17.833Z Has data issue: false hasContentIssue false
  • English
  • Français

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.
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Müller, K. A., Takashiege, M., and Bednorz, J. G., Phys. Rev. Lett. 58, 1143 (1987).Google Scholar
2. Deutscher, G. and Müller, K. A., Phys. Rev. Lett. 59, 1745 (1987).Google Scholar
3. Finnemore, D. K., Shelton, R. N., Clem, J. R., McCallum, R.W., Ku, H.C., McCarley, R. E., Chen, S. C., Klavins, P., and Kogan, V., Phys. Rev. B35, 5319 (1987).Google Scholar
4. Nam, S. B., (unpublished, Jan. 1987); APS March New York Meeting (1987).Google Scholar
5. Nam, S. B. and Ray, J., Bull. Am. Phys. Soc. 31, 239 (1986).Google Scholar
6. Nam, S. B., MRS April Anaheim Meeting, EA-11, 115 (1987).Google Scholar
7. The complicated XRD patterns made it difficult to determine the structure of BaYCuTiO sample.Google Scholar
8. Nam, S. B., Physica 107B, 715 (1981); MRS Proc. 22, 209 (1984).Google Scholar
9. Nam, S. B., et al, Novel Superconductivity (Plenum Pub.) 993, (1987).Google Scholar