A difficulty in reliably diagnosing continuous melting transitions via canonical simulations is pointed out and illustrated by the model of hard exagons on a plane triangular lattice; finite-sized realizations at fixed density may well exhibit coexisting ordered and disordered peaks in phase space even when the transition is continuous in the thermodynamic limit. The role of flows and mappings in the theory of phase transitions is discussed. The nature of the phase diagrams in model systems displaying spatially modulated order and commensurate-incommensurate transitions is emphasized, and some recent developments are reviewed briefly.
|Original language||English (US)|
|Title of host publication||Unknown Host Publication Title|
|Editors||R.K. Kalia, P. Vashishta|
|Number of pages||35|
|State||Published - Dec 1 1982|
All Science Journal Classification (ASJC) codes