E-J characteristics and distribution of local Jc for melt-textured grown bulk YBa2Cu3O7 under high magnetic fields

Satoshi Awaji; Kazuo Watanabe; Mitsuhiro Motokawa; Akira Kuramochi; Tetsuo Fukase; Keiichi Kimura

doi:10.1143/jjap.40.l330

E-J characteristics and distribution of local J_c for melt-textured grown bulk YBa₂Cu₃O₇ under high magnetic fields

Satoshi Awaji, Kazuo Watanabe, Mitsuhiro Motokawa, Akira Kuramochi, Tetsuo Fukase, Keiichi Kimura

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In order to evaluate the distribution of flux pinning for a melt-textured grown bulk YBa₂Cu₃O₇ under magnetic fields, the E-J properties for samples prepared under various magnetic fields were measured. The measured E-J properties were analyzed on the basis of a local J_c distribution model proposed by Yamafuji and Kiss [K. Yamafuji and T. Kiss: Physica C 290 (1997) 9]. The distribution of local J_c was found to narrow continuously with increasing magnetic field applied to the melt growth process, independent of the critical current density. The weak links at subdomain boundaries were considered to improve as a result of the change in crystallinity.

Original language	English
Pages (from-to)	L330-L333
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	40
Issue number	4 A
DOIs	https://doi.org/10.1143/jjap.40.l330
Publication status	Published - 2001 Apr 1

Keywords

E-J property
Flux pinning
Melt growth in magnetic field
Superconductivity

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.40.l330

Cite this

E-J characteristics and distribution of local J_c for melt-textured grown bulk YBa₂Cu₃O₇ under high magnetic fields. / Awaji, Satoshi; Watanabe, Kazuo; Motokawa, Mitsuhiro; Kuramochi, Akira; Fukase, Tetsuo; Kimura, Keiichi.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 40, No. 4 A, 01.04.2001, p. L330-L333.

Research output: Contribution to journal › Article › peer-review

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