Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field

Y. Zushi, I. Asaba, J. Ogawa, K. Yamagishi, O. Tsukamoto, Masato Murakami, M. Tomita

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The trapped magnetic field in a bulk is decayed and even erased by the application of the AC external magnetic field whose amplitude is much smaller than the trapped magnetic field. In the previous work, an experimental result showed that the decay of the trapped magnetic field was due to temperature rise of the bulk caused by the AC losses. Based on this result, it is considered that the decay can be suppressed by (a) improvement of the cooling of the bulk and (b) reduction of the AC losses. We verified the effectiveness of these methods by conducting an experiment using a recently developed metal impregnated bulk which has high critical current density and improved thermal conductivity.

Original languageEnglish
Pages (from-to)708-713
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct
Externally publishedYes

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trapped magnetic fields
alternating current
retarding
Magnetic fields
decay
magnetic fields
critical current
thermal conductivity
current density
cooling
conduction
Thermal conductivity
Metals
Cooling
metals
temperature
Experiments
Temperature

Keywords

  • AC losses
  • Bulk temperature
  • HTS bult
  • Trapped magnetic field

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field. / Zushi, Y.; Asaba, I.; Ogawa, J.; Yamagishi, K.; Tsukamoto, O.; Murakami, Masato; Tomita, M.

In: Physica C: Superconductivity and its Applications, Vol. 412-414, No. SPEC. ISS., 10.2004, p. 708-713.

Research output: Contribution to journalArticle

Zushi, Y. ; Asaba, I. ; Ogawa, J. ; Yamagishi, K. ; Tsukamoto, O. ; Murakami, Masato ; Tomita, M. / Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field. In: Physica C: Superconductivity and its Applications. 2004 ; Vol. 412-414, No. SPEC. ISS. pp. 708-713.
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