Flux pinning in melt grown LRE123 superconductors
Journal Article
·
· Journal of Low Temperature Physics
- Superconductivity Research Lab., Minato-ku, Tokyo (Japan); and others
Unlike Y123 which forms only a stoichiometric compound the light rare earth elements (LRE: La, Nd, Sm, Eu, Gd) form a solid solution LRE{sub 1+x}Ba{sub 2{minus}x}Cu{sub 3}O{sub y}. When LRE123 superconductors are melt-processed in a reduced oxygen atmosphere, they exhibit high T{sub c}`s and large J{sub c} values in high magnetic fields associated with a second peak effect. The authors believe that such a behavior is closely related to the presence of a LRE-Ba solid solution. In this paper the authors propose the flux pinning mechanism of LRE123, and then discuss the source of the peak effect.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 443726
- Report Number(s):
- CONF-960808--
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 5-6 Vol. 105; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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