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Czechoslovak Journal of Physics

, Volume 54, Supplement 4, pp 441–444 | Cite as

Superconducting Permanent Magnets for High-temperature Operation

  • M. Jirsa
  • M. Muralidhar
Article

Abstract

LRE-Ba2Cu3Oy (LRE=light rare earth, LRE-123) bulk superconducting materials prepared by melt texturing have approached the stage of industrial applicability. The recent progress in the technology enabled levitation experiments at temperatures as high as 90.2 K (liquid oxygen) and extended the applicability of permanent magnets at 77 K (liquid nitrogen) up to fields as high as 12 Tesla. Both these achievements were reached due to novel types of pinning structure created in these materials. Here we give an overview of the present state of the art.

Keywords

superconducting magnets ternary LRE-123 compounds mesoscopic defects 

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Copyright information

© Institute of Physics, Academy of Sciences of Czech Republic 2004

Authors and Affiliations

  • M. Jirsa
    • 1
  • M. Muralidhar
    • 2
  1. 1.Institute of Physics ASCR
  2. 2.Superconductivity Research Laboratory

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