Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

Jun Ogawa, Satoshi Fukui, Tetsuo Oka, Naoto Shidara, Ryousuke Iwashita, Masayoshi Ohya

Research output: Contribution to journalArticlepeer-review


In this paper, we applied a magnetic field in multiple directions to a Bi2223/Ag tape and measured the transport current and magnetization losses in each position using the four terminal and pickup coil methods. We rotated the tape face and the tape axis to the ac magnetic field by 15° segments. We report the magnetic field direction dependence of ac losses. When the magnetic field direction is parallel to the tape face and the tape axis is rotated in the magnetic field, each magnetization loss shows a crossing point. When the magnetic field is not parallel, the magnetization losses are increased as the angle of the tape axis to the magnetic field increases. We compared the total losses with additions of the transport current loss without the magnetic field and the magnetization loss without transport current in multiple magnetic field directions, and these results did not correspond.

Original languageEnglish
Article number7377072
JournalIEEE Transactions on Applied Superconductivity
Issue number4
Publication statusPublished - 2016 Jun 1
Externally publishedYes


  • AC loss
  • High temperature superconductor
  • multiple magnetic field direction

ASJC Scopus subject areas

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


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