Magnetic microscopy for characterization of local critical current in iron-sheathed MgB2 wires

K. Higashikawa, A. Yamamoto, T. Kiss, S. Ye, A. Matsumoto, H. Kumakura

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

We have developed a characterization method of local critical current in iron-sheathed MgB2 wires. Local homogeneity was visualized by the scanning Hall-probe microscopy (SHPM). The value of local critical current was quantified with the aid of the finite element method (FEM) considering the ferromagnetic properties of the iron sheath. The results suggested that MgB 2 wires fabricated by internal Mg diffusion processes still have large longitudinal inhomogeneity and much higher potential than that estimated by the four-probe transport method. This will be very important information for making a correct strategy for further development of MgB2 wires.

本文言語英語
ページ(範囲)62-64
ページ数3
ジャーナルPhysica C: Superconductivity and its applications
504
DOI
出版ステータス出版済み - 9 15 2014

All Science Journal Classification (ASJC) codes

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

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