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Titolo:
Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging
Autore:
Liu, YH; Lu, L; Luo, ZQ; Luo, K; Xiao, L; Ren, HT; Jiao, YL; Zheng, MH; Gao, ZX;
Indirizzi:
Peking Univ, Mesoscop Phys Natl Lab, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 ijing 100871, Peoples R China Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China Gen Res Inst NonFerrous Met Beijing Peoples R China 100088 oples R China
Titolo Testata:
PHYSICA C
, volume: 341, anno: 2000,
parte:, 2
pagine: 1337 - 1338
SICI:
0921-4534(200011)341:<1337:DOUAJI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
HIGH-TEMPERATURE SUPERCONDUCTORS; FLUX-CREEP; YBA2CU3O7-X; RELAXATION; DEPENDENCE; FILMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, YH Peking Univ, Mesoscop Phys Natl Lab, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 0871, Peoples R China
Citazione:
Y.H. Liu et al., "Determination of U(x,t) and j in MTG YBCO bulk by magneto-optic imaging", PHYSICA C, 341, 2000, pp. 1337-1338

Abstract

We use the magneto-optic imaging to determine the spatial distribution andthe time dependence of the magnetic induction B-z(x,t) on the broad surface of the melt texture growth YBCO bulk. The model-independent effective activation energy U and the current density j could be calculated from B-z(x,t), partial derivativeB(z)(x,t)/partial derivativet and partial derivativeB(z)(x,t)/partial derivativex. The good fit shows that the thermally activated flux creep in the melt texture growth bulk is consistent with the logarithmic model in the temperature range of liquid nitrogen.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 19:37:29