Published March 1989
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Macroscopic persistent currents in high temperature ceramic superconductors
Description
We study the macroscopic persistent currents (PC) in a thick cylindrical shell of ceramic high temperature superconductors (HTS) in the framework of a generalized Ginzburg-Landau theory (GGL), based on the coexistence of antiferromagnetism and superconductivity. It is shown that, in the absence of the applied magnetic field, the PC differ in nature from the current associated with the Meissner effect. Moreover, we found that the maximum PC is greater than the critical PC. This study may serve for further technological progress with HTS. (author). 29 refs
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Additional details
Publishing Information
- Imprint Pagination
- 8 p.
- Report number
- IC--89/49
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 20065567
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIFERROMAGNETISM; CERAMICS; ELECTRIC CURRENTS; GINZBURG-LANDAU THEORY; MAGNETIC FIELDS; MEISSNER-OCHSENFELD EFFECT; SUPERCONDUCTIVITY; TYPE-II SUPERCONDUCTORS
- Descriptors DEC
- CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETISM; PHYSICAL PROPERTIES; SUPERCONDUCTORS