Abstract
To examine the reliability of the measuring method of the critical current density Jc induced by a pulsed magnetic field, we measured Jc of high-Tc superconductors. The main advantages of this method are that it is not needed to use any electric contact, and that the measuring time is relatively short. Sintered and single-crystal YBa2Cu3Oy, sintered YBa2Cu4Oy and sintered Bi systems were prepared. Jc of YBa2Cu3Oy single-crystal thin films are about 106A/cm2 at liquid nitrogen temperature. This value agrees with the Jc measured by the four terminal method. The results of sintered samples also show a reasonable temperature dependence.
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Schedule a callMore From: Journal of the Japan Society of Powder and Powder Metallurgy
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