| 摘要 |
<p>An oxide superconducting wire material having a low loss and utilizing a reversible phenomenon. The oxide superconducting wire material is characterized in that a multi-core superconductor includes a plurality of superconducting filaments buried into a matrix and satisfies the following formulas (1): d « 2 νm ..., and (2): d/(2μo') « 1 ..., where d is the size of the superconducting filaments and μo' is a penetration depth of a Campbell's A.C. magnetic field.</p> |
