Study of the peak effect phenomenon in single crystals of 2H-NbSe2

Tomy, C. V. ; Pal, D. ; Banerjee, S. S. ; Ramakrishnan, S. ; Grover, A. K. ; Bhattacharya, S. ; Higgins, M. J. ; Balakrishnan, G. ; Paul, McK (2002) Study of the peak effect phenomenon in single crystals of 2H-NbSe2 Pramana - Journal of Physics, 58 (5-6). pp. 925-935. ISSN 0304-4289

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The weakly pinned single crystals of the hexagonal 2H-NbSe2 compound have emerged as prototypes for determining and characterizing the phase boundaries of the possible order-disorder transformations in the vortex matter. We present here a status report based on the ac and dc magnetization measurements of the peak effect phenomenon in three crystals of 2H-NbSe2, in which the critical current densities vary over two orders of magnitude. We sketch the generic vortex phase diagram of a weakly pinned superconductor, which also utilizes theoretical proposals. We also establish the connection between the metastability effects and pinning.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Peak Effect; Vortex Phase Diagram; Order to Disorder Transformation; 2H-NbSe2
ID Code:40980
Deposited On:25 May 2011 12:13
Last Modified:17 May 2016 22:51

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