122 citations · 289 across the 9 of their papers we have counts for
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Vortex-enhanced alternating order around impurities in antiferromagnets
Ruggero Vaia, Alessandro Cuccoli
It has been recently pointed out that the presence of a nonmagnetic impurity in a Heisenberg antiferromagnet generates an alternating order of the surrounding spins which is indepe…
Field-induced XY behavior in the S=1/2 antiferromagnet on the square lattice
Alessandro Cuccoli, Tommaso Roscilde, Ruggero Vaia +1
Making use of the quantum Monte Carlo method based on the worm algorithm, we study the thermodynamic behavior of the S=1/2 isotropic Heisenberg antiferromagnet on the square lattic…
Quantum Monte Carlo study of S=1/2 weakly-anisotropic antiferromagnets on the square lattice
Alessandro Cuccoli, Tommaso Roscilde, Valerio Tognetti +2
We study the finite-temperature behaviour of two-dimensional S=1/2 Heisenberg antiferromagnets with very weak easy-axis and easy-plane exchange anisotropies. By means of quantum Mo…