High-Tc superconducting magnets that function at liquid oxygen temperature

M. Muralidhar, N. Sakai, M. Jirsa, M. Murakami, N. Koshizuka

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This article reports on a novel superconducting material suitable for a superconducting magnet that can function up to liquid oxygen temperature (90.2 K). This achievement provides a distinguished step toward industrial applications of liquid oxygen, which is as broad as those of liquid nitrogen. The strong flux pinning at 90.2 K was recently achieved in a (Nd 0.33Eu0.33Gd0.33)Ba2Cu 3Oy compound in that nanometer size Zr-based pinning centers are distributed. This composite exhibited at 90.2 K an outstanding critical current density > 40 kA/cm2 that fulfills requirements of some industrial applications.

Original languageEnglish
Pages (from-to)1206-1209
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - 2004 Jun


  • Critical current density
  • Flux pinning
  • Melt-processed bulk materials
  • Superconducting magnets at 90.2 K

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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