High flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors at 77 K

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The optimisation of ternary (Nd-Eu-Gd)Ba2Cu3Oy (NEG) bulk quasi-crystals has been carried out to achieve high pinning at 77 K. For this purpose we prepared samples with various Nd:Eu:Gd ratios in the NEG compound. Our experimental results suggest that a suitable combination of the three elements on the rare earth site can enhance flux pinning at low, intermediate, and high magnetic fields. This is thus an effective tool for tailoring properties of this material according to requirements of the particular application. We show that the maximum flux pinning can be achieved in the whole magnetic field range (at 77 K) when very fine (sub-micron) secondary phase particles are dispersed in a superconducting 123 matrix with an optimum Nd:Eu:Gd ratio.

Original languageEnglish
Pages (from-to)750-754
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

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Flux pinning
flux pinning
Superconducting materials
Magnetic fields
magnetic fields
Rare earths
rare earth elements
requirements
Crystals
optimization
matrices
crystals

Keywords

  • Critical current density (J)
  • Flux pinning
  • Matrix chemical ratio
  • NEG-123

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

High flux pinning in ternary (Nd-Eu-Gd)Ba2Cu3Oy superconductors at 77 K. / Miryala, Muralidhar; Jirsa, M.; Sakai, Naomichi; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 750-754.

Research output: Contribution to journalArticle

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