Enhancement of the Transport Critical Current Density in a YBa_2Cu_3O_x Ceramic by Electron Irradiation under Remanent Magnetic Fields

概要

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The transport critical current density of YBa_2Cu_3O_x ceramic was measured at zero external field and various temperatures from 15 to 90 K and then at temperatures from 90 to 15 K, after application of a constant magnetic field of 1.0 T at about 15 K. The critical current density was enhanced by 3 MeV electron irradiation at doses of up to 4.0×10^<21> m^<-2> during cooling from 90 to 15 K under the remanent magnetic fields induced by externally applied fields of up to 0.05 T, whereas the critical current density deceased markedly at low temperatures during heating to 90 K.
社団法人応用物理学会の論文
1996-06-15