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Abstract : |
Magnetization measurements for La1.45Nd0.40Sr0.15CuO4 single crystal have been performed in order to investigate the effects of spin-charge ordering on pinning and scaling behavior of J(c) and P-f. Despite the large differences in the irreversible fields along the ab-plane and the c-axis, the obtained values of H-c (hence the free energy) are basically similar. The maximum pinning forces obtained from the irreversible magnetization along c and in the ab-plane were found to scale with (H-c)(beta) for both crystallographic directions. (C) 2002 Elsevier Science B.V. All rights reserved., |
