Disordered Type-II Superconductors: A Universal Phase Diagram for   Low-T$_c$ Systems
  A universal phase diagram for weakly pinned low-T$_c$ type-II superconductors is revisited and extended with new proposals. The low-temperature ``Bragg glass'' phase is argued to transform first into a disordered, glassy phase upon heating. This glassy phase, a continuation of the high-field equilibrium vortex glass phase, then melts at higher temperatures into a liquid. This proposal provides an explanation for the anomalies observed in the peak effect regime of 2H-NbSe$_2$ and several other low-T$_c$ materials which is independent of the microscopic mechanisms of superconductivity in these systems. 
S. S. Banerjee, A. K. Grover, M.J. Higgins, G. I. Menon (Corresponding   Author), P. K. Mishra, D. Pal, S. Ramakrishnan, T.V...