A theory for phase transitions capable of describing competing interactions in dipolar coupled spin systems and clustered metal alloys is discussed. A variational solution is used to minimise the free energy in order to determine phase boundaries. Results show spin glass transitions and re-entrant behaviour in two and three dimensions. (C) 2003 Elsevier B.V. All rights reserved.
|Journal||Journal of Magnetism and Magnetic Materials|
|Publication status||Published - 2004|