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

T. Fujiyoshi; K. Ohashi; K. Yamafuji; T. Kiss; M. Inoue

doi:10.1088/0953-2048/12/12/306

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

T. Fujiyoshi, K. Ohashi, K. Yamafuji, T. Kiss, M. Inoue

Section of Measurement and Control Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The ac loss in high-T_c superconductors near the glass-liquid transition temperature T_g 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 J_c 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 J_c is replaced by the effective critical current density J_ce(ω). The applicability of the present expression is also discussed.

Original language	English
Pages (from-to)	1063-1066
Number of pages	4
Journal	Superconductor Science and Technology
Volume	12
Issue number	12
DOIs	https://doi.org/10.1088/0953-2048/12/12/306
Publication status	Published - Dec 1999
Event	Proceedings of the 1999 9th International Workshop on Critical Currents in Superconductors, IWCC9 - Madison, WI, USA Duration: Jul 7 1999 → Jul 10 1999

All Science Journal Classification (ASJC) codes

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

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10.1088/0953-2048/12/12/306

Cite this

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

abstract = "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.",

author = "T. Fujiyoshi and K. Ohashi and K. Yamafuji and T. Kiss and M. Inoue",

note = "Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.; Proceedings of the 1999 9th International Workshop on Critical Currents in Superconductors, IWCC9 ; Conference date: 07-07-1999 Through 10-07-1999",

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T1 - AC loss near the glass-liquid transition temperature in high-Tc superconductors - an extended Bean model

AU - Fujiyoshi, T.

AU - Ohashi, K.

AU - Yamafuji, K.

AU - Kiss, T.

AU - Inoue, M.

PY - 1999/12

Y1 - 1999/12

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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SN - 0953-2048

VL - 12

SP - 1063

EP - 1066

JO - Superconductor Science and Technology

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T2 - Proceedings of the 1999 9th International Workshop on Critical Currents in Superconductors, IWCC9

Y2 - 7 July 1999 through 10 July 1999

ER -

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

Abstract

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