Evolution of Nagaoka phase with kinetic energy frustrating hopping
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 t&...
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Autores principales: | , , , , |
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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
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2017
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/102240 https://ri.conicet.gov.ar/11336/50493 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.195103 |
Aporte de: |
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I19-R120-10915-102240 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Física Nagaoka Kinetic frustration Strongly correlated electrons |
spellingShingle |
Física Nagaoka Kinetic frustration Strongly correlated electrons Lisandrini, Franco Thomas Bravo, Bárbara Trumper, Adolfo Emilio Manuel, Luis Oscar Gazza, Claudio Javier Evolution of Nagaoka phase with kinetic energy frustrating hopping |
topic_facet |
Física Nagaoka Kinetic frustration Strongly correlated electrons |
description |
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 t'c/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. |
format |
Articulo Preprint |
author |
Lisandrini, Franco Thomas Bravo, Bárbara Trumper, Adolfo Emilio Manuel, Luis Oscar Gazza, Claudio Javier |
author_facet |
Lisandrini, Franco Thomas Bravo, Bárbara Trumper, Adolfo Emilio Manuel, Luis Oscar Gazza, Claudio Javier |
author_sort |
Lisandrini, Franco Thomas |
title |
Evolution of Nagaoka phase with kinetic energy frustrating hopping |
title_short |
Evolution of Nagaoka phase with kinetic energy frustrating hopping |
title_full |
Evolution of Nagaoka phase with kinetic energy frustrating hopping |
title_fullStr |
Evolution of Nagaoka phase with kinetic energy frustrating hopping |
title_full_unstemmed |
Evolution of Nagaoka phase with kinetic energy frustrating hopping |
title_sort |
evolution of nagaoka phase with kinetic energy frustrating hopping |
publishDate |
2017 |
url |
http://sedici.unlp.edu.ar/handle/10915/102240 https://ri.conicet.gov.ar/11336/50493 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.195103 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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