Browsing Exact and Earth Sciences by Author "Mendoza Coto, Alejandro"
Now showing items 1-6 of 6
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Coarse-grained models of stripe forming systems : phase diagrams, anomalies, and scaling hypothesis
Mendoza Coto, Alejandro; Stariolo, Daniel Adrian (2012) [Journal article]Two coarse-grained models which capture some universal characteristics of stripe forming systems are studied. At high temperatures, the structure factors of both models attain their maxima on a circle in reciprocal space, ... -
Event-driven Monte Carlo : exact dynamics at all time scales for discrete-variable models
Mendoza Coto, Alejandro; Díaz Méndez, Rogelio; Pupillo, Guido (2016) [Journal article]We present an algorithm for the simulation of the exact real-time dynamics of classical many-body systems with discrete energy levels. In the same spirit of kinetic Monte Carlo methods, a stochastic solution of the master ... -
Langevin simulations of stripe forming systems with long-range isotropic competing interactions
Nicolao, Lucas; Mendoza Coto, Alejandro; Stariolo, Daniel Adrian (2016) [Journal article]We address the critical properties of the isotropic-nematic phase transition in stripe forming systems. We focus on isotropic models in which a short range attractive interaction competes with a long range repulsive ... -
Modulated systems in external fields : conditions for the presence of reentrant phase diagrams
Mendoza Coto, Alejandro; Billoni, Orlando Vito; Cannas, Sergio A.; Stariolo, Daniel Adrian (2016) [Journal article]We introduce a coarse-grained model capable of describing the phase behavior of two-dimensional ferromagnetic systems with competing exchange and dipolar interactions, as well as an external magnetic field. An improved ... -
Nature of long-range order in stripe-forming systems with long-range repulsive interactions
Mendoza Coto, Alejandro; Stariolo, Daniel Adrian; Nicolao, Lucas (2015) [Journal article]We study two dimensional stripe forming systems with competing repulsive interactions decaying as r−α.We derive an effective Hamiltonian with a short-range part and a generalized dipolar interaction which depends on the ... -
Nematic phase in stripe-forming systems within the self-consistent screening approximation
Barci, Daniel G.; Mendoza Coto, Alejandro; Stariolo, Daniel Adrian (2013) [Journal article]We show that in order to describe the isotropic-nematic transition in stripe-forming systems with isotropic competing interactions of the Brazovskii class it is necessary to consider the next to leading order in a 1/N ...