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Evolution in the split-peak structure across the Peak Effect region in single crystals of $2H$-NbSe$_2$

A. D. Thakur·T. V. Chandrasekhar Rao·S. Uji·T. Terashima·M. J. Higgins·S. Ramakrishnan·A. K. Grover
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Abstract

We have explored the presence of a two-peak feature spanning the peak effect (PE) region in the ac susceptibility data and the magnetization hysteresis measurements over a wide field-temperature regime in few weakly pinned single crystals of $2H$-NbSe$_2$, which display reentrant characteristic in the PE curve near $T_c$(0). We believe that the two-peak feature evolves into distinct second magnetization peak anomaly well separated from the PE with gradual enhancement in the quenched random pinning.

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A. D. Thakur, T. V. Chandrasekhar Rao, S. Uji, T. Terashima, M. J. Higgins, S. Ramakrishnan, A. K. Grover. 2006-05-09. Evolution in the split-peak structure across the Peak Effect region in single crystals of $2H$-NbSe$_2$. https://doi.org/10.1143/jpsj.75.074718

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