Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Simulation on local flux creep in non-ideal type-II superconductors: The effect of non-uniform pinning potential and surface potential
Autore:
Liu, F; Yan, SS;
Indirizzi:
Beijing Univ, Dept Phys, Beijing 100871, Peoples R China Beijing Univ Beijing Peoples R China 100871 jing 100871, Peoples R China Beijing Univ, Mesoscop Phys State Key Lab, Beijing 100871, Peoples R ChinaBeijing Univ Beijing Peoples R China 100871 jing 100871, Peoples R China
Titolo Testata:
ACTA PHYSICA SINICA
fascicolo: 9, volume: 49, anno: 2000,
pagine: 1829 - 1837
SICI:
1000-3290(200009)49:9<1829:SOLFCI>2.0.ZU;2-7
Fonte:
ISI
Lingua:
CHI
Soggetto:
HIGH-TEMPERATURE SUPERCONDUCTORS; HIGH-TC SUPERCONDUCTORS; MAGNETIC-RELAXATION; YBA2CU3O7;
Keywords:
non-ideal type II superconductor; local magnetic relaxation; non-uniform flux pinning; surface potential barrier;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, F Beijing Univ, Dept Phys, Beijing 100871, Peoples R China Beijing Univ Beijing Peoples R China 100871 0871, Peoples R China
Citazione:
F. Liu e S.S. Yan, "Simulation on local flux creep in non-ideal type-II superconductors: The effect of non-uniform pinning potential and surface potential", ACT PHY C E, 49(9), 2000, pp. 1829-1837

Abstract

Based on the thermally activated model,the flux creep process in the case of non-uniform pinning potential and surface pinning potential in nonideal type II superconductors is studied through computer simulation. Global and local magnetization curves are calculated and the logarithmic time dependence of local magnetic induction under a constant external field is examined. The results show that the motion of the flux is much restrained in the non-uniform case and the flux line is easy to be captured by the strong pinning center. The surface potential has marked effect in preventing the flux from going into and leaving the sample. Compared with the global behavior,thelocal magnetization is much more sensitive to the non-uniform pinning potential and the magnetic field sweep rate.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 07:35:12