Critical current density in Gd1Ba2Cu3O7-δ coated conductor under the influence of flux creep

Yuta Onodera; Takanobu Kiss; Suguru Gangi; Kazutaka Imamura; Kohei Higashikawa; Masayoshi Inoue; Masateru Yoshizumi; Teruo Izumi

doi:10.1016/j.phpro.2015.06.156

Critical current density in Gd₁Ba₂Cu₃O_7-δ coated conductor under the influence of flux creep

Yuta Onodera, Takanobu Kiss, Suguru Gangi, Kazutaka Imamura, Kohei Higashikawa, Masayoshi Inoue, Masateru Yoshizumi, Teruo Izumi

Section of Measurement and Control Engineering

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

7 Citations (Scopus)

Abstract

We have investigated electric field vs. current density(E-J) characteristics of Gd₁Ba₂Cu₃O_7-δ coated conductor over a wide range of E by deriving from magnetization relaxation and transport four-probe measurements. We succeeded in obtaining E-J characteristics between10^-2 to 5×10^-11 V/m, and analyzed the results within a frame work of the percolation transition model taking into account flux creep with a distribution of activation energy. This allows us to describe E-J characteristics as well as magnetic relaxation analytically based on the transport measurements. Clear deviation from the n-value model has also been confirmed from the experimental results.

Original language	English
Pages (from-to)	926-930
Number of pages	5
Journal	Physics Procedia
Volume	67
DOIs	https://doi.org/10.1016/j.phpro.2015.06.156
Publication status	Published - 2015
Event	25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014 - Enschede, Netherlands Duration: Jul 7 2014 → Jul 11 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1016/j.phpro.2015.06.156

Cite this

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title = "Critical current density in Gd1Ba2Cu3O7-δ coated conductor under the influence of flux creep",

abstract = "We have investigated electric field vs. current density(E-J) characteristics of Gd1Ba2Cu3O7-δ coated conductor over a wide range of E by deriving from magnetization relaxation and transport four-probe measurements. We succeeded in obtaining E-J characteristics between10-2 to 5×10-11 V/m, and analyzed the results within a frame work of the percolation transition model taking into account flux creep with a distribution of activation energy. This allows us to describe E-J characteristics as well as magnetic relaxation analytically based on the transport measurements. Clear deviation from the n-value model has also been confirmed from the experimental results.",

author = "Yuta Onodera and Takanobu Kiss and Suguru Gangi and Kazutaka Imamura and Kohei Higashikawa and Masayoshi Inoue and Masateru Yoshizumi and Teruo Izumi",

note = "Funding Information: This work was supported by the {"}METI: Development of Fundamental Technology for HTS Coils{"} and {"}JSPS: KAKENHI (24760235)”. Publisher Copyright: {\textcopyright} 2015 The Authors.; 25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014 ; Conference date: 07-07-2014 Through 11-07-2014",

year = "2015",

doi = "10.1016/j.phpro.2015.06.156",

language = "English",

volume = "67",

pages = "926--930",

journal = "Physics Procedia",

issn = "1875-3884",

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TY - JOUR

T1 - Critical current density in Gd1Ba2Cu3O7-δ coated conductor under the influence of flux creep

AU - Onodera, Yuta

AU - Kiss, Takanobu

AU - Gangi, Suguru

AU - Imamura, Kazutaka

AU - Higashikawa, Kohei

AU - Inoue, Masayoshi

AU - Yoshizumi, Masateru

AU - Izumi, Teruo

PY - 2015

Y1 - 2015

N2 - We have investigated electric field vs. current density(E-J) characteristics of Gd1Ba2Cu3O7-δ coated conductor over a wide range of E by deriving from magnetization relaxation and transport four-probe measurements. We succeeded in obtaining E-J characteristics between10-2 to 5×10-11 V/m, and analyzed the results within a frame work of the percolation transition model taking into account flux creep with a distribution of activation energy. This allows us to describe E-J characteristics as well as magnetic relaxation analytically based on the transport measurements. Clear deviation from the n-value model has also been confirmed from the experimental results.

AB - We have investigated electric field vs. current density(E-J) characteristics of Gd1Ba2Cu3O7-δ coated conductor over a wide range of E by deriving from magnetization relaxation and transport four-probe measurements. We succeeded in obtaining E-J characteristics between10-2 to 5×10-11 V/m, and analyzed the results within a frame work of the percolation transition model taking into account flux creep with a distribution of activation energy. This allows us to describe E-J characteristics as well as magnetic relaxation analytically based on the transport measurements. Clear deviation from the n-value model has also been confirmed from the experimental results.

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U2 - 10.1016/j.phpro.2015.06.156

DO - 10.1016/j.phpro.2015.06.156

M3 - Conference article

AN - SCOPUS:84948424824

SN - 1875-3884

VL - 67

SP - 926

EP - 930

JO - Physics Procedia

JF - Physics Procedia

T2 - 25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014

Y2 - 7 July 2014 through 11 July 2014

ER -

Critical current density in Gd₁Ba₂Cu₃O_7-δ coated conductor under the influence of flux creep

Abstract

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