Comments on "Vortex Glass and Lattice Melting Transitions in a YNi2B2C Single Crystal"
S. Sridhar, S. Oxx, B. A. Willemsen, H. Srikanth, D. P. Choudhury
Abstract
Recently, Mun et.al. (Phys. Rev. Lett., 76, 2790 (1996)) have published their results on single crystal YNi2B2C, claiming that their experimental observations can be explained in terms of formation of Vortex Glass and Lattice melting. Our experiments, carried out on samples obtained from the SAME source, reveal a much richer phase diagram and span wider regions of experimental parameter space than Mun et. al. that encompasses most of their observations. We speculate that this material has anomalous intrinsic properties and the results cannot be explained by simple models about the flux lattice.
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