Artículo
Phase transitions, order by disorder, and finite entropy in the Ising antiferromagnetic bilayer honeycomb lattice
Fecha de publicación:
30/07/2018
Editorial:
American Physical Society
Revista:
Physical Review E: Statistical, Nonlinear and Soft Matter Physics
ISSN:
1539-3755
e-ISSN:
2470-0053
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present an analytical and numerical study of the Ising model on a bilayer honeycomb lattice including interlayer frustration and coupling with an external magnetic field. First, we discuss the exact T=0 phase diagram, where we find finite entropy phases for different magnetizations. Then, we study the magnetic properties of the system at finite temperature using complementary analytical techniques (Bethe lattice) and two types of Monte Carlo algorithms (Metropolis and Wang-Landau). We characterize the phase transitions and discuss the phase diagrams. The system presents a rich phenomenology: There are first- and second-order transitions, low-temperature phases with extensive degeneracy, and order-by-disorder state selection.
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Citación
Gómez Albarracín, Flavia Alejandra; Rosales, Héctor Diego; Serra, Pablo; Phase transitions, order by disorder, and finite entropy in the Ising antiferromagnetic bilayer honeycomb lattice; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 98; 1; 30-7-2018; 1-13
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