106 citations · 762 across the 60 of their papers we have counts for
60 papers
Role of positional disorder in fully textured ensembles of Ising-like dipoles
J. J. Alonso, B. Alles, J. G. Malherbe +1
We study by numerical simulation the magnetic order in ensembles of randomly packed magnetic spherical particles which, induced by their uniaxial anisotropy in the strong coupling…
Magnetic ordering of random dense packings of freely rotating dipoles
J. J. Alonso, B. Alles, V. Russier
We study random dense packings of Heisenberg dipoles by numerical simulation. The dipoles are at the centers of identical spheres that occupy fixed random positions in space and fi…
Phase diagram for ensembles of random close packed Ising-like dipoles as a function of texturation
J. J. Alonso, B. Alles, V. Russier
We study random close packed systems of magnetic spheres by Monte Carlo simulations in order to estimate their phase diagram. The uniaxial anisotropy of the spheres makes each of t…
Finite density 2d O(3) sigma model: dualization and numerical simulations
B. Alles, O. Borisenko, Alessandro Papa
The action of the 2d O(3) non-linear sigma model on the lattice in a bath of particles, when expressed in terms of standard O(3) degrees of freedom, is complex. A reformulation of…
Nature of the spin-glass phase in dense packings of Ising dipoles with random anisotropy axes
J. J. Alonso, B. Alles
Using tempered Monte Carlo simulations, we study the the spin-glass phase of dense packings of Ising dipoles pointing along random axes. We consider systems of L^3 dipoles (a) plac…
Behavior near of the mass gap in the 2D O(3) non-linear sigma model
B. Alles, M. Giordano, A. Papa
The validity of the Haldane's conjecture entails that the mass gap of the 2-dimensional O(3) non-linear sigma model with a -term must tend to zero as approaches the value $π…