Magnetization Jumps and Irreversibility in Bi_2Sr_2CaCu_2O_8 (original) (raw)

Abstract

Using torque magnetometry, the bulk magnetization of single crystal Bi_2Sr_2CaCu_2O8 has been investigated for temperatures close to the superconducting transition temperature. The results establish that the magnitude of the magnetization jump that can appear at the vortex solid to vortex liquid tranformation is strongly correlated with the irreversibility displayed by the vortex solid. This finding suggests that the jump may have and artifactual origin.

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