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The wall-thickness dependence of magnetic shielding or trapping in a low-field superconductor, Pb40Sn60

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Abstract

The measured internal magnetic field H2 of superconducting cylindrical tubes made of soft solder depends on the external magnetic field H1 and the wall thickness W. An empirical equation relating H1, H2, and W is obtained. This empirical equation suggests that the distribution of the magnetic field in the wall of the tubes is expressed as 1/(h′)2=1+1/X2, X1≤X≤X2; where h′ is the magnetic field normalized with respect to the critical field, and X1 and X2 are the dimensionless locations of the external and inner surfaces of the wall, respectively.

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Furuya, S., Tominaga, A. & Narahara, Y. The wall-thickness dependence of magnetic shielding or trapping in a low-field superconductor, Pb40Sn60 . J Low Temp Phys 53, 477–485 (1983). https://doi.org/10.1007/BF00682489

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  • DOI: https://doi.org/10.1007/BF00682489

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