Thermal and magnetic responses of a solid nitrogen/magnetized YBCO disk system undergoing temperature cycles in the range of 8-60 K

Yukikazu Iwasa, Juan Bascuñán, Joseph Jankowski, Ho Min Kim, Haigun Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)


In this paper we report thermal and magnetic responses of a magnetized YBCO disk cooled by a cryogenic design/operation concept that incorporates solid nitrogen in the system. The YBCO disk was "field-cooled" at 88 K and then operated in the range 8-60 K. During each cooling sequence, the system is thermally coupled to a cryocooler; then thermally decoupled from the cryocooler at 8 K and left decoupled until it reaches 60 K. As an application of this cryogenic design/operation concept, we describe a 0.5-T/80 cm bore magnet wound with MgB2 presently being developed at FBML.

Original languageEnglish
Pages (from-to)1727-1730
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - 2004 Jun 1



  • MgB magnet
  • Solid nitrogen
  • YBCO disk

ASJC Scopus subject areas

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

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