Anisotropy of I-V characteristics in YBa2Cu3O7-δ films

T. Nojima, H. Iimura, Y. Kuwasawa, S. Nakano, T. Yamaguchi

Research output: Contribution to journalArticlepeer-review


Current voltage (itI-V) curves CVD-YBa2Cu3O7-δ films near the glass transition temperature Tg in the mixed state are studied as a function of the angle θ between magnetic field andc axis. In the vortex-glass scaling analysis of I-V curves, it is found that the glass critical exponentsare independent of θ, and do not show a remarkable change even at θ=90°(H⊥c). Our results indicates that periodic plane-like intrinsic pinning is not so effective near Tg and vortices are pinned at the random point-like disorder for all field directions.

Original languageEnglish
Pages (from-to)2675-2676
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Issue numberPART 4
Publication statusPublished - 1994 Dec


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