✦ LIBER ✦

Finite-temperature vortex-glass-liquid transition observed in epitaxial Bi2Sr2Ca2Cu3Ox thin films

✍ Scribed by H. Yamasaki; K. Endo; S. Kosaka; M. Umeda; S. Yoshida; K. Kajimura

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 249 KB
Volume: 235-240
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)92561-5

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✦ Synopsis

Existence of a finite-temperature vortex-glass-liquid transition has been demonstrated in a scaling analysis of nonlinear I-V characteristics in epitaxial Bi2Sr2Ca2Cu3Ox films in magnetic fields parallel to the c-axis. We propose a quasi-two-dimensional vortex-glass transition in which the correlation length in the a-b plane only scales with IT-Tg I, where Tg is the vortex-glass transition temperature. In the vortc~ glass regime below Tg the linear resistivity Plin = (EIJ)J'-->O appears to vanish, while in the vortex-liquid regime finite Plin is observed.

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