Flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3O7-δ

Optimization for the highest pinning

A. K. Pradhan, Muralidhar Miryala, Y. Feng, Masato Murakami, K. Nakao, N. Koshizuka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The optimization of high-quality melt-processed ternary (Nd-Eu-Gd)Ba2Cu3O7-δ composite samples has been carried out to achieve the largest pinning. Our results suggest that the interaction between the twin planes and the fine second-phase precipitate forms a strongly pinned entangled vortex liquid in which vortices are correlated along the c axis. This pinned vortex liquid freezes into a glassy state at low temperature rendering high critical current density, Jc. The maximum Jc can be achieved in as-grown optimally annealed twinned sample with second phase precipitate without disturbing the twin influence.

Original languageEnglish
Pages (from-to)2033-2035
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number13
Publication statusPublished - 2000 Sep 25
Externally publishedYes

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flux pinning
vortices
optimization
precipitates
liquids
critical current
current density
composite materials
interactions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3O7-δ : Optimization for the highest pinning. / Pradhan, A. K.; Miryala, Muralidhar; Feng, Y.; Murakami, Masato; Nakao, K.; Koshizuka, N.

In: Applied Physics Letters, Vol. 77, No. 13, 25.09.2000, p. 2033-2035.

Research output: Contribution to journalArticle

Pradhan, AK, Miryala, M, Feng, Y, Murakami, M, Nakao, K & Koshizuka, N 2000, 'Flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3O7-δ: Optimization for the highest pinning', Applied Physics Letters, vol. 77, no. 13, pp. 2033-2035.
Pradhan, A. K. ; Miryala, Muralidhar ; Feng, Y. ; Murakami, Masato ; Nakao, K. ; Koshizuka, N. / Flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3O7-δ : Optimization for the highest pinning. In: Applied Physics Letters. 2000 ; Vol. 77, No. 13. pp. 2033-2035.
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