Temperature Dependent Magnetization and Critical Current Density in Pr doped HTS YBa₂Cu₃O_x

Dr. Pawan Kumar

Associate Prof., Department of  Physics, A.S. (P.G.) College,Sikandrabad, U.P., India.

In present study we have studied the variation of magnetization versus applied field up to 4 T over a wide temperature range from 10 K to 70 K for Pr doped polycrystalline YBa₂Cu₃O_x. The critical current density has been calculated based on the magnetization measurements. Our titration measurements yielded an oxygen content of x=6.98 for the 400°C-annealed sample and x=6.62 for the 600°C-annealed sample. The electrical resistivity experiments showed transition temperature T_c. values of 91 K and 63 K for the samples annealed at 400°C and 600°C, respectively.

Keywords: Magnetization, Current density, Superconductivity.

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