Effect of CeO2 addition on microstructure and magnetic properties in (Nd,Eu,Gd)-Ba-Cu-O

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Morphology of Gd2BaCuO5 (Gd-211) secondary phase particles in an oxygen-controlled-melt-growth processed (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy + 0.5 mol% of Pt (NEG-123) was studied as a function of varying amount (0-3 mol%) of CeO2. Optical and scanning electron microscopy revealed that sub-micron Gd-211 particles were distributed uniformly throughout the NEG-123 matrix for additions of up to 2 mol% of CeO2. With increasing CeO2 content the critical current density, Jc, increased particularly at low magnetic fields. The maximum value of Jc was achieved for 1 mol% CeO2 and reached 100 kA cm-2 at zero field and 77 K. The improved low-field critical current density is attributed to the refinement of Gd-211 particles.

Original languageEnglish
Pages (from-to)665-668
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Fingerprint

Magnetic properties
Magnetic fields
Oxygen
magnetic properties
microstructure
Microstructure
Scanning electron microscopy
critical current
current density
scanning electron microscopy
oxygen
matrices
magnetic fields

Keywords

  • CeO
  • Fine normal-conducting particles
  • Gd-211
  • High critical current density
  • LRE-BaCuO
  • Peak effect

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Effect of CeO2 addition on microstructure and magnetic properties in (Nd,Eu,Gd)-Ba-Cu-O. / Miryala, Muralidhar; Jirsa, M.; Iida, K.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 357-360, No. SUPPL. 2, 08.2001, p. 665-668.

Research output: Contribution to journalArticle

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