Abstract
Results of an investigation of the path dependence of the critical current density J c due to the plastic deformation of the flux line lattice in a weakly pinned YBa2Cu3O7-δ (YBCO) crystal for H‖c are reported. The procedure of minor hysteresis loops has been used to explore the path dependence of J c and the metastability effects. Contrary to the behavior observed in low T c systems. in YBCO it is found that at low temperatures, the multivaluedness in J c(H) could persist beyond the notional peak field H p, at which the anomalous variation in J c(H) reaches its maximum value.
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Pal, D., Ramakrishnan, S., Grover, A.K. et al. A study of the plasticity in the vortex matter across the second magnetization peak in a YBCO crystal via measurements of minor hysteresis loops. Pramana - J Phys 58, 937–947 (2002). https://doi.org/10.1007/s12043-002-0197-y
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DOI: https://doi.org/10.1007/s12043-002-0197-y