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The frustrated spherical model: an alternative to Ginzburg-Landau Hamiltonians with competing interactions
Alejandro Mendoza-Coto, Rogelio Díaz-Méndez
We solve analytically the Langevin dynamics of the classic spherical model considering the ferromagnetic exchange and a long-range antiferromagnetic interaction. Our results in the…
Dynamics of systems with isotropic competing interactions in an external field: a Langevin approach
Rogelio Díaz-Méndez, Alejandro Mendoza-Coto, Roberto Mulet +2
We study the Langevin dynamics of a ferromagnetic Ginzburg-Landau Hamiltonian with a competing long-range repulsive term in the presence of an external magnetic field. The model is…
Construction of white-light holographic screens
Jose J. Lunazzi, Daniel S. F. Magalhaes, Rolando L. Serra
In this paper we describe one setup employed for the recording of two types of holographic screens that can be used in white-light applications. We show how to obtain holographic s…
H-T phase diagram of the bi-dimensional Ising model with exchange and dipolar interactions
Rogelio Diaz-Mendez, Roberto Mulet
We explore the equilibrium properties of a two-dimensional Ising spin model with short-range exchange and long-range dipolar interactions as a function of the applied magnetic fiel…