83 citations · 224 across the 8 of their papers we have counts for
5 papers · 2 filters
Phase transitions in generalized chiral or Stiefel's models
D. Loison
We study the phase transition in generalized chiral or Stiefel's models using Monte Carlo simulations. These models are characterized by a breakdown of symmetry O(N)/O(N-P). We sho…
First and second order transition of frustrated Heisenberg spin systems
D. Loison, K. D. Schotte
Starting from the hypothesis of a second order transition we have studied modifications of the original Heisenberg antiferromagnet on a stacked triangular lattice (STA-model) by th…
First and second order transition in frustrated XY systems
D. Loison, K. D. Schotte
The nature of the phase transition for the XY stacked triangular antiferromagnet (STA) is a controversial subject at present. The field theoretical renormalization group (RG) in th…
"Quasi Universality classes" in 2D frustrated XY spin systems
D. Loison
Classical XY spins on a two dimensional triangular lattice with antiferromagnetic interactions are reconsidered. We find that the Kosterlitz-Thouless transition associated to the U…
Critical behavior of frustrated systems: Monte Carlo simulations versus Renormalization Group
D. Loison, A. I. Sokolov, B. Delamotte +3
We study the critical behavior of frustrated systems by means of Pade-Borel resummed three-loop renormalization-group expansions and numerical Monte Carlo simulations. Amazingly, f…