Evolution in split-peak structure across the peak effect region in single crystals of 2H-NbSe2

Thakur, A. D. ; Rao, T. V. Chandrasekhar ; Uji, S. ; Terashima, T. ; Higgins, M. J. ; Ramakrishnan, S. ; Grover, A. K. (2006) Evolution in split-peak structure across the peak effect region in single crystals of 2H-NbSe2 Journal of the Physical Society of Japan, 75 . 074718-074726. ISSN 0031-9015

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Official URL: http://jpsj.ipap.jp/link?JPSJ/75/074718/

Related URL: http://dx.doi.org/10.1143/JPSJ.75.074718

Abstract

We have investigated the presence of a two-peak feature spanning the peak effect (PE) region in the ac susceptibility data and magnetization hysteresis measurements over a wide field-temperature regime in few weakly pinned single crystals of 2H-NbSe2, which display a reentrant characteristic in the PE curve near Tc(0). We believe that the two-peak feature evolves into a distinct second magnetization peak (SMP) anomaly well separated from the PE with gradual enhancement in the quenched random pinning.

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