A General Approach to First Order Phase Transitions and the Anomalous Behavior of Coexisting Phases in the Magnetic Case (pages 942–949)
Sergio Gama, Ariana de Campos, Adelino A. Coelho, Cleber S. Alves, Yang Ren, Flávio Garcia, Dennis E. Brown, Luzeli M. da Silva, A. Magnus G. Carvalho, Flávio C. G. Gandra, Adenilson O. dos Santos, Lisandro P. Cardoso and Pedro J. von Ranke
Article first published online: 6 FEB 2009 | DOI: 10.1002/adfm.200801185
A new conceptual framework for first order transitions on exotic systems is presented. These transitions must occur along intervals of temperature and of the ordering parameters and obey a generalized Clausius–Clapeyron equation. When the ordering parameter is magnetization, measurements of magnetic and lattice properties during the transitions reveal anomalous behavior for these properties. These anomalies are hidden in the behavior of the global properties of the magnetic systems (see figure).