Artículo
Evolution of Nagaoka phase with kinetic energy frustrating hopping
Lisandrini, Franco Thomas
; Bravo, Barbara
; Trumper, Adolfo Emilio
; Manuel, Luis Oscar
; Gazza, Claudio Javier
Fecha de publicación:
05/2017
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter and Materials Physics
ISSN:
1098-0121
e-ISSN:
2469-9969
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We investigate, using the density-matrix renormalization group, the evolution of the Nagaoka state with t′ hopping that frustrates the hole kinetic energy in the U=∞ Hubbard model on the square and anisotropic triangular lattices. We find that the Nagaoka ferromagnet survives up to a rather small tc′/t∼0.2. At this critical value, there is a transition to an antiferromagnetic phase that depends on the lattice: a Q=(Q,0) spiral order, which continuously evolves with t′, for the triangular lattice and the usual Q=(π,π) Néel order for the square lattice. Remarkably, the local magnetization takes its classical value for all considered t′ (t′/t≤1). Our results show that the recently found classical kinetic antiferromagnetism, a perfect counterpart of Nagaoka ferromagnetism, is a generic phenomenon in these kinetically frustrated electronic systems.
Palabras clave:
Nagaoka
,
Kinetic Frustration
,
Strongly Correlated Electrons
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Articulos(IFIR)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Lisandrini, Franco Thomas; Bravo, Barbara; Trumper, Adolfo Emilio; Manuel, Luis Oscar; Gazza, Claudio Javier; Evolution of Nagaoka phase with kinetic energy frustrating hopping; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 95; 19; 5-2017; 195103-195109
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