Thermal Ising Transition in the Spin-1/2 J_{1}-J_{2} Heisenberg Model.
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DOI: 10.1103/physrevlett.128.227202
Abstract: Using an SU(2) invariant finite-temperature tensor network algorithm, we provide strong numerical evidence in favor of an Ising transition in the collinear phase of the spin-1/2 J_{1}-J_{2} Heisenberg model on the square lattice. In units… read more here.
Keywords: ising transition; heisenberg model; spin heisenberg; temperature ... See more keywords
Ising-XY Transition in Three-dimensional Frustrated Antiferromagnets with Collinear Spin Ordering
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DOI: 10.1134/s0021364019060055
Abstract: Using Monte Carlo simulations, we study the critical behavior of two models of frustrated XY antiferromagnets with a collinear spin ordering and with an additional twofold degeneracy of the ground state. We consider a classic… read more here.
Keywords: spin ordering; collinear spin; antiferromagnets collinear; frustrated antiferromagnets ... See more keywords