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Exploring metastability via the third harmonic measurements in single crystals of $2H$-$NbSe_2$ showing anomalous Peak effect

A. D. Thakur·S. S. Banerjee·M. J. Higgins·S. Ramakrishnan·A. K. Grover
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Abstract

We explore the metastability effects across the order-disorder transition pertaining to the peak effect phenomenonon in critical current density ($J_c$) via the first and the third harmonic ac susceptibility measurements in the weakly pinned single crystals of $2H$-$NbSe_2$. An analysis of our data suggests that an imprint of the limiting (spinodal) temperature above which $J_c$ is path independent can be conveniently located in the third harmonic data ($χ_{3ω}^{\prime}$).

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A. D. Thakur, S. S. Banerjee, M. J. Higgins, S. Ramakrishnan, A. K. Grover. 2005-09-20. Exploring metastability via the third harmonic measurements in single crystals of $2H$-$NbSe_2$ showing anomalous Peak effect. https://doi.org/10.1103/physrevb.72.134524

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