ISSN:
0392-6737
Schlagwort(e):
Flux pinning
;
flux motion
;
fluxon-defect interactions
;
Critical currents
;
Conference proceedings
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Summary The results of low-temperature magnetic-relaxation experiments in TlBaCaCuO superconductors (2212 and 2223 phase) are reported. They give evidence of a crossover from a thermally activated regime of flux motion to a nonthermally activated one. The magnetic-relaxation rate is found to become temperature independent below ≅7K and ≅3K, for the 2212 and 2223 phase, respectively. Its value compares well with that predicted by the theories of flux motion by quantum tunnelling.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02462195
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