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

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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References in corpus (3)

• Peak effect and dynamic melting of vortex matter in NbSe${}_2$ crystals
• Fate of the Peak Effect in a Type-II Superconductor: Multicriticality in the Bragg-Glass Transition
• Exploring metastability via the third harmonic measurements in single crystals of $2H$-$NbS{e}_2$ showing anomalous Peak effect

Cited by in corpus (1)

• Magnetic field-induced quasiparticle excitation in Nb3Sn: Evidence for anisotropic s-wave pairing