Flux Relaxation and Pinning Potential in Weak Links of Sintered Tl2Ba2Ca2Cu3O10+x

Autor: WU Yusheng, Cao Xiao-Wen, Long Xiangyun, Feng Shangshen, Fang Junren, QI Zhiwei, Peng Huotain, Peng Qiyun
Rok vydání: 1991
Předmět:
Zdroj: Chinese Physics Letters. 8:300-302
ISSN: 1741-3540
0256-307X
DOI: 10.1088/0256-307x/8/6/008
Popis: We have measured directly the low field magnetization and its time decay of weak link superconductor in the sintered Tl2Ba2Ca2Cu3O10+x. The decay of magnetization with time at the field intensities of 5, 10, 15, 20 and 50 Oe was observed to follow the law of logarithm, M ∞ ln t. The pinning potential derived from the slope of the magnetization decay is about 0.045 similar 0.075 eV.
Databáze: OpenAIRE