Hostname: page-component-848d4c4894-jbqgn Total loading time: 0 Render date: 2024-06-15T07:08:12.871Z Has data issue: false hasContentIssue false
  • English
  • Français

Low-Field Dc Josephson Magnetization of Layered Superconductors

Published online by Cambridge University Press:  26 February 2011

Hsang-Jue Wang  and
Ming-Fong Tai
Hsang-Jue Wang
Affiliation:
Telecommunication Labs., Ministry of Transportation and Communications, P. O. Box 71, Chung-Li, Taiwan 32099, Republic of, China
Ming-Fong Tai
Affiliation:
Telecommunication Labs., Ministry of Transportation and Communications, P. O. Box 71, Chung-Li, Taiwan 32099, Republic of, China
Get access

Abstract

Temperature dependences of DC magnetization with low magnetic applied field (< 160 G) have been studied on layered superconductors. Two-step behavior below Tc are seen in most of the bulk samples, when the field is smaller than a few tens of Gauss. A grain-cluster model which taking both inter- and intragrain regions into consideration as two components of the present system is used to interpret the observed phenomena. The intergranular component is conjectured as coming from Josephson tunneling supercurrent between grains. A two-critical-states model including the surface-critical-state is extracted to outline the transition behavior of the shielding currents. The two-step phenomenon of the “bulk” magnetization is well explained with appropriate selections of the coupling strength and phase for the intergrains and of those critical current densities for the intragrains.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 323
Copyright
Copyright © Materials Research Society 1992

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] Shinde, S. L., Monili, J., Goland, D., Chance, D.A. and Hcguire, T., Phys. Rev. B 41, 8838 (1989).Google Scholar
[2] Calzona, V., Cimberle, M. R., Ferdeghini, C., Putti, M. and Siri, A. S., Physica C 157 (1989) 425–430.Google Scholar
[3] Muller, K. -H., Physica C 159 (1989) 717.Google Scholar
[4] Muller, K. -H. and Pauza, A. J., Physica C 161 (1989) 319.Google Scholar
[5] Jung, J., Mohamed, M. A. -K., Cheng, S. C. and Franck, J. P., Phy. Rev. B 42, 6181 (1990).Google Scholar
[6] Clem, J. R., Physica C 50 (1988) 153–155.Google Scholar
[7] Chen, D. -X., Nogues, J. and Rao, K. V., Cryogenics 1989 Vol. 29 p800.Google Scholar
[8] Chen, D. -X., Sanchez, A., Puig, T., Martinez, L. M. and Munoz, J. S., Physica C 168 (1990) 652–667.Google Scholar
[9] Feynman, R. P., The Feynman Lectures on Physics, vol.3 Chap. 21, Addissley (1965).Google Scholar
[10] Matisco, J., Proc. Applied Superconductivity Conference, 535, (1972).Google Scholar
[11] Owen, C. S. and Scalapino, D. J., Phys. Rev., 164 (1967) 538.Google Scholar
[12] Peterson, R. L., J. Appl. Phys. 67 (11), 1 June 1990.Google Scholar