AC loss near the glass-liquid transition temperature in high-Tc superconductors - an extended Bean model

T. Fujiyoshi, K. Ohashi, K. Yamafuji, Takanobu Kiss, Masayoshi Inoue

研究成果: ジャーナルへの寄稿Conference article

2 引用 (Scopus)

抄録

The ac loss in high-Tc superconductors near the glass-liquid transition temperature Tg is studied numerically and theoretically. It is found that the ac loss in a slab sample under a dc bias magnetic field depends remarkably on the angular frequency, ω, which cannot be described by the usual critical state model using the critical current density Jc defined with the electric field criterion. However, it is shown that the ac loss including the flux flow loss is described quantitatively by the well known expression based on the Bean critical state model, where Jc is replaced by the effective critical current density Jce(ω). The applicability of the present expression is also discussed.

元の言語英語
ページ(範囲)1063-1066
ページ数4
ジャーナルSuperconductor Science and Technology
12
発行部数12
DOI
出版物ステータス出版済み - 12 1 1999
イベントProceedings of the 1999 9th International Workshop on Critical Currents in Superconductors, IWCC9 - Madison, WI, USA
継続期間: 7 7 19997 10 1999

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Superconducting materials
Superconducting transition temperature
alternating current
transition temperature
Glass
glass
Liquids
liquids
critical current
current density
slabs
Electric fields
Magnetic fields
Fluxes
electric fields
magnetic fields

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

これを引用

AC loss near the glass-liquid transition temperature in high-Tc superconductors - an extended Bean model. / Fujiyoshi, T.; Ohashi, K.; Yamafuji, K.; Kiss, Takanobu; Inoue, Masayoshi.

:: Superconductor Science and Technology, 巻 12, 番号 12, 01.12.1999, p. 1063-1066.

研究成果: ジャーナルへの寄稿Conference article

Fujiyoshi, T. ; Ohashi, K. ; Yamafuji, K. ; Kiss, Takanobu ; Inoue, Masayoshi. / AC loss near the glass-liquid transition temperature in high-Tc superconductors - an extended Bean model. :: Superconductor Science and Technology. 1999 ; 巻 12, 番号 12. pp. 1063-1066.
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AU - Inoue, Masayoshi

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N2 - The ac loss in high-Tc superconductors near the glass-liquid transition temperature Tg is studied numerically and theoretically. It is found that the ac loss in a slab sample under a dc bias magnetic field depends remarkably on the angular frequency, ω, which cannot be described by the usual critical state model using the critical current density Jc defined with the electric field criterion. However, it is shown that the ac loss including the flux flow loss is described quantitatively by the well known expression based on the Bean critical state model, where Jc is replaced by the effective critical current density Jce(ω). The applicability of the present expression is also discussed.

AB - The ac loss in high-Tc superconductors near the glass-liquid transition temperature Tg is studied numerically and theoretically. It is found that the ac loss in a slab sample under a dc bias magnetic field depends remarkably on the angular frequency, ω, which cannot be described by the usual critical state model using the critical current density Jc defined with the electric field criterion. However, it is shown that the ac loss including the flux flow loss is described quantitatively by the well known expression based on the Bean critical state model, where Jc is replaced by the effective critical current density Jce(ω). The applicability of the present expression is also discussed.

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