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cond-mat.stat-mech2005★ 2 cited
First-order transitions for very nonlinear sigma models
A. C. D. van Enter, S. B. Shlosman
In this contribution we discuss the occurrence of first-order transitions in temperature in various short-range lattice models with a rotation symmetry. Such transitions turn out t…
cond-mat.stat-mech2005★ 4 cited
A model with simultaneous first and second order phase transitions
Alain Messager, Bruno Nachtergaele
We introduce a two dimensional nonlinear XY model with a second order phase transition driven by spin waves, together with a first order phase transition in the bond variables betw…