Effect of Matrix Resistivity on Twisting in Superconducting Composite Conductors

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概要

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• A.C. losses in the superconducting multifilament composite conductors with different matrix resistivities are studied experimentally. The coupling between superconducting filaments in the composite decreases as the matrix resistivity is raised. In the high resistivity region (≳5×10^<-8>Ωcm), the A. C. loss shows the minimum value at a twist-pitch when the coupling is neglected. The untwisted composite with a Cu-Ni matrix of high resistivity (〜10^<-5>Ωcm) seems to be a uniform body of low resistivity (〜10^<-10>Ωcm) due to the coupling. The critical twist-pitch necessary for neglecting the coupling effect is obtained as a function of the matrix resistivity.

• 社団法人応用物理学会の論文
• 1974-11-05

著者

• Shiiki Kazuo

  Central Research Laboratory Hitachi Ltd.

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