Single-domain NEG-123 bulk superconductors for high magnetic field applications

Muralidhar Miryala, S. Nariki, M. Jirsa, Masato Murakami

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The single-domain (Nd0.33Eu0.33Gd0.33)Ba2Cu3 Oy "NEG-123" bulk superconductors of 22 mm diameter were prepared with the oxygen-controlled melt-growth process. 40 mol% of (Nd0.33Eu0.33Gd0.33)2BaCuO5 "NEG-211" sub-micron particles was dispersed in the NEG-123 matrix to improve the flux pinning capability at 77 K. For the controlled crystal growth, we used the melt-textured Nd-123 as a seed. The trapped fields were measured at 77 K using a Hall probe scanned at 2 mm above the pellet surface. In the single-domain NEG bulk 22 mm in diameter and 9.5 mm in thickness, a trapped magnetic field of 0.7 T was recorded at 77 K and 2 T, which corresponds to the total 2.7 T including the external field.

Original languageEnglish
Pages (from-to)1134-1136
Number of pages3
JournalPhysica C: Superconductivity and its Applications
Volume372-376
Issue numberPART 2
DOIs
Publication statusPublished - 2002 Aug
Externally publishedYes

Fingerprint

Flux pinning
Crystallization
Crystal growth
Superconducting materials
Seed
trapped magnetic fields
Magnetic fields
Oxygen
flux pinning
magnetic fields
pellets
crystal growth
seeds
probes
oxygen
matrices

Keywords

  • Flux pinning
  • Melt-textured
  • NEG-123
  • Trapped magnetic field

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Single-domain NEG-123 bulk superconductors for high magnetic field applications. / Miryala, Muralidhar; Nariki, S.; Jirsa, M.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 372-376, No. PART 2, 08.2002, p. 1134-1136.

Research output: Contribution to journalArticle

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