Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2005.07a
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- Pages.292-293
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- 2005
Electric Properties of YBCO Superconductor
YBCO 세라믹의 전기적 특성
- Lee, Sang-Heon (Dept. of Electronic Eng. Sun Moon University)
- 이상헌 (선문대학교 전자공학부)
- Published : 2005.07.07
Abstract
An electromagnetic memory effect observed in superconducting YBCO system was studied. From the measurement of differential conductance, it was cleared that the mechanism of electromagnetic memory can not be explained by using conventional flux flow model. By changing the density of external magnetic flux, changes in inductance of a coil in which a superconducting bar is inserted were also measured. It was concluded that the electromagnetic memory effect aries from the interaction between the trapped magnetic flux and the weak link of the filament formed in the superconducting bar.