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Relationship among flux depinning, irreversibility and phase transition in a disordered HTS material

Superconductor science & technology, 1999-12, Vol.12 (12), p.1079-1082 [Peer Reviewed Journal]

2000 INIST-CNRS ;ISSN: 0953-2048 ;EISSN: 1361-6668 ;DOI: 10.1088/0953-2048/12/12/310

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Title:
Relationship among flux depinning, irreversibility and phase transition in a disordered HTS material
Author: Kiss, T ; Matsushita, T ; Irie, F
Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; High-tc films ; Physics ; Properties of type I and type II superconductors ; Superconducting films and low-dimensional structures ; Superconductivity ; Vortex lattices ,flux pinning, flux creep
Is Part Of: Superconductor science & technology, 1999-12, Vol.12 (12), p.1079-1082
Description: The influence of flux pinning on the vortex glass-liquid (GL) phase transition and irreversibility in HTSs has been examined on the basis of systematic measurements of electric field (E) versus current density (J) curves in a YBCO thin film. It has been shown that the GL transition is identical to the thermal depinning determined by the minimum value of the macroscopic pinning strength. The isothermal scaling of the E-J characteristics is directly related to the nature of the pinning. The irreversibility line can be described as an iso-J line governed by the statistical pin distribution. If we determine the criteria for the irreversibility line, we can describe the irreversibility line based on the depinning line. The essential physical quantity, therefore, can be attributed to the flux depinning.
Publisher: Bristol: IOP Publishing
Language: English
Identifier: ISSN: 0953-2048
EISSN: 1361-6668
DOI: 10.1088/0953-2048/12/12/310
Source: Alma/SFX Local Collection

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Relationship among flux depinning, irreversibility and phase transition in a disordered HTS material

2000 INIST-CNRS ;ISSN: 0953-2048 ;EISSN: 1361-6668 ;DOI: 10.1088/0953-2048/12/12/310

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