Magnetization loss properties of thin superconducting tapes with field-dependent critical current

K. Kajikawa, T. Hayashi, D. Nakamura, K. Funaki

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


AC losses are numerically evaluated in thin superconducting tapes exposed to an external magnetic field perpendicular to their broad face under the assumption of the critical state model including the field dependence of a critical current density. When the thickness of tape is much smaller than the width, the electromagnetic fields are determined by obtaining the distribution of the magnetic field perpendicular to the tape face and the current density integrated over the tape thickness. Nonlinear integral equations for the perpendicular field are numerically solved at each step during a cycle of external field, and the magnetization losses are finally estimated from the product of local electric field and current density. The influences of the field dependence of critical current density on the losses are discussed quantitatively.

Original languageEnglish
Pages (from-to)1295-1301
Number of pages7
JournalPhysica C: Superconductivity and its applications
Issue numberII
Publication statusPublished - 2005
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: Nov 23 2004Nov 25 2004

All Science Journal Classification (ASJC) codes

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


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