We consider the thermodynamics of an infinite-range Ising p-spin glass model with an additional r-spin ferromagnetic interaction. For r = 2 there is a continuous transition to a ferromagnetic phase, while for r > 2 the transition is first order. We find both glassy and non-glassy ferromagnetic phases, with replica symmetry breaking of both the one step and full varieties. We obtain new results for the case where r = p > 2, demonstrating the existence of a non-glassy ferromagnetic phase, of significance to error-correcting codes.
|Number of pages||16|
|Journal||Journal of Physics A: Mathematical and General|
|Publication status||Published - 2001 Apr 13|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Physics and Astronomy(all)