Thermodynamic properties of a three-dimensional defect system

This is the authors' abstract. We don't add key points for this paper.

We analyze the recently proposed model of defect melting in three dimensions via high- and low-temperature expansions and compare the internal energy and specific heat with the result of Monte Carlo simulations. The transition is found to be strongly of first order with a Lindemann number L>112 and a transition entropy {Δ}s{}1.2, thus very much resembling a crystalline melting process.