Scanning Hall-probe microscopy system for two-dimensional imaging of critical current density in RE-123 coated conductors

Kohei Higashikawa, Masayoshi Inoue, T. Kawaguchi, K. Shiohara, K. Imamura, Takanobu Kiss, Y. Iijima, K. Kakimoto, T. Saitoh, T. Izumi

研究成果: ジャーナルへの寄稿記事

18 引用 (Scopus)

抄録

We have developed a characterization method for two-dimensional imaging of critical current density in coated conductors (CCs) based on scanning Hall-probe microscopy (SHPM). The distributions of the magnetic field around a sample were measured for several different conditions of external magnetic fields, and then were converted to those of the sheet current density which flowed to shield the external magnetic field or to trap the penetrated magnetic field. As a result, it was found that the amplitude of the sheet current density corresponded to that of critical current density almost in all the area of the sample except for the region where current direction changed. This indicates that we could obtain an in-plane distribution of the critical current density with a spatial resolution of around 100 μm in non-destructive manner by this method. We believe that this measurement will be a multifunctional and comprehensive characterization method for coated conductors.

元の言語英語
ページ(範囲)1036-1040
ページ数5
ジャーナルPhysica C: Superconductivity and its Applications
471
発行部数21-22
DOI
出版物ステータス出版済み - 11 1 2011

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critical current
Microscopic examination
conductors
Magnetic fields
current density
microscopy
Scanning
Imaging techniques
scanning
probes
Current density
magnetic fields
spatial resolution
traps

All Science Journal Classification (ASJC) codes

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

これを引用

Scanning Hall-probe microscopy system for two-dimensional imaging of critical current density in RE-123 coated conductors. / Higashikawa, Kohei; Inoue, Masayoshi; Kawaguchi, T.; Shiohara, K.; Imamura, K.; Kiss, Takanobu; Iijima, Y.; Kakimoto, K.; Saitoh, T.; Izumi, T.

:: Physica C: Superconductivity and its Applications, 巻 471, 番号 21-22, 01.11.2011, p. 1036-1040.

研究成果: ジャーナルへの寄稿記事

Higashikawa, Kohei ; Inoue, Masayoshi ; Kawaguchi, T. ; Shiohara, K. ; Imamura, K. ; Kiss, Takanobu ; Iijima, Y. ; Kakimoto, K. ; Saitoh, T. ; Izumi, T. / Scanning Hall-probe microscopy system for two-dimensional imaging of critical current density in RE-123 coated conductors. :: Physica C: Superconductivity and its Applications. 2011 ; 巻 471, 番号 21-22. pp. 1036-1040.
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abstract = "We have developed a characterization method for two-dimensional imaging of critical current density in coated conductors (CCs) based on scanning Hall-probe microscopy (SHPM). The distributions of the magnetic field around a sample were measured for several different conditions of external magnetic fields, and then were converted to those of the sheet current density which flowed to shield the external magnetic field or to trap the penetrated magnetic field. As a result, it was found that the amplitude of the sheet current density corresponded to that of critical current density almost in all the area of the sample except for the region where current direction changed. This indicates that we could obtain an in-plane distribution of the critical current density with a spatial resolution of around 100 μm in non-destructive manner by this method. We believe that this measurement will be a multifunctional and comprehensive characterization method for coated conductors.",
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AU - Higashikawa, Kohei

AU - Inoue, Masayoshi

AU - Kawaguchi, T.

AU - Shiohara, K.

AU - Imamura, K.

AU - Kiss, Takanobu

AU - Iijima, Y.

AU - Kakimoto, K.

AU - Saitoh, T.

AU - Izumi, T.

PY - 2011/11/1

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N2 - We have developed a characterization method for two-dimensional imaging of critical current density in coated conductors (CCs) based on scanning Hall-probe microscopy (SHPM). The distributions of the magnetic field around a sample were measured for several different conditions of external magnetic fields, and then were converted to those of the sheet current density which flowed to shield the external magnetic field or to trap the penetrated magnetic field. As a result, it was found that the amplitude of the sheet current density corresponded to that of critical current density almost in all the area of the sample except for the region where current direction changed. This indicates that we could obtain an in-plane distribution of the critical current density with a spatial resolution of around 100 μm in non-destructive manner by this method. We believe that this measurement will be a multifunctional and comprehensive characterization method for coated conductors.

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