ZnO doping effects in melt-textured (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy grown from MgO seed

Muralidhar Miryala, T. Kono, M. Jirsa, Naomichi Sakai, Masato Murakami, I. Hirabayashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We successfully grew high-quality single-grain (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy pellets using MgO seed crystals, provided a small quantity of ZnO was added. Tc (onset) continuously decreased with growing Zn content. An optimum for ZnO, compromising good superconducting and electromagnetic properties, was 0.035 mol%. With this ZnO content, Tc>92 K, a critical current density of 100 kA cm-2 was achieved at 77 K and 3 T, and the irreversibility field was >7 T. Perfect facet lines up to the bottom of the sample with the c-axis reflection plane appeared after the melt growth, implying a high density of the material and practically no liquid loss. Very small difference in the trapped field distribution on the top and bottom surfaces confirmed a uniform crystallographic structure and the electromagnetic properties of the pellet.

Original languageEnglish
JournalSuperconductor Science and Technology
Volume19
Issue number6
DOIs
Publication statusPublished - 2006 Jun

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electromagnetic properties
pellets
Seed
seeds
Doping (additives)
Crystals
Liquids
flat surfaces
critical current
current density
liquids
crystals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

ZnO doping effects in melt-textured (Nd0.33Eu 0.39Gd0.27)Ba2Cu3Oy grown from MgO seed. / Miryala, Muralidhar; Kono, T.; Jirsa, M.; Sakai, Naomichi; Murakami, Masato; Hirabayashi, I.

In: Superconductor Science and Technology, Vol. 19, No. 6, 06.2006.

Research output: Contribution to journalArticle

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AU - Sakai, Naomichi

AU - Murakami, Masato

AU - Hirabayashi, I.

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