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Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice
Bilayer honeycomb lattice, with inter-layer tunneling energy, has a parabolic dispersion relation, and the inter-layer hopping can cause the charge imbalance between two sublattices. Here, we investigate the metal-insulator and magnetic phase transitions on the strongly correlated bilayer honeycomb...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064339/ https://www.ncbi.nlm.nih.gov/pubmed/24947369 http://dx.doi.org/10.1038/srep05367 |
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author | Tao, Hong-Shuai Chen, Yao-Hua Lin, Heng-Fu Liu, Hai-Di Liu, Wu-Ming |
author_facet | Tao, Hong-Shuai Chen, Yao-Hua Lin, Heng-Fu Liu, Hai-Di Liu, Wu-Ming |
author_sort | Tao, Hong-Shuai |
collection | PubMed |
description | Bilayer honeycomb lattice, with inter-layer tunneling energy, has a parabolic dispersion relation, and the inter-layer hopping can cause the charge imbalance between two sublattices. Here, we investigate the metal-insulator and magnetic phase transitions on the strongly correlated bilayer honeycomb lattice by cellular dynamical mean-field theory combined with continuous time quantum Monte Carlo method. The procedures of magnetic spontaneous symmetry breaking on dimer and non-dimer sites are different, causing a novel phase transition between normal anti-ferromagnet and layer anti-ferromagnet. The whole phase diagrams about the magnetism, temperature, interaction and inter-layer hopping are obtained. Finally, we propose an experimental protocol to observe these phenomena in future optical lattice experiments. |
format | Online Article Text |
id | pubmed-4064339 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-40643392014-06-23 Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice Tao, Hong-Shuai Chen, Yao-Hua Lin, Heng-Fu Liu, Hai-Di Liu, Wu-Ming Sci Rep Article Bilayer honeycomb lattice, with inter-layer tunneling energy, has a parabolic dispersion relation, and the inter-layer hopping can cause the charge imbalance between two sublattices. Here, we investigate the metal-insulator and magnetic phase transitions on the strongly correlated bilayer honeycomb lattice by cellular dynamical mean-field theory combined with continuous time quantum Monte Carlo method. The procedures of magnetic spontaneous symmetry breaking on dimer and non-dimer sites are different, causing a novel phase transition between normal anti-ferromagnet and layer anti-ferromagnet. The whole phase diagrams about the magnetism, temperature, interaction and inter-layer hopping are obtained. Finally, we propose an experimental protocol to observe these phenomena in future optical lattice experiments. Nature Publishing Group 2014-06-20 /pmc/articles/PMC4064339/ /pubmed/24947369 http://dx.doi.org/10.1038/srep05367 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Tao, Hong-Shuai Chen, Yao-Hua Lin, Heng-Fu Liu, Hai-Di Liu, Wu-Ming Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title | Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title_full | Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title_fullStr | Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title_full_unstemmed | Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title_short | Layer Anti-Ferromagnetism on Bilayer Honeycomb Lattice |
title_sort | layer anti-ferromagnetism on bilayer honeycomb lattice |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064339/ https://www.ncbi.nlm.nih.gov/pubmed/24947369 http://dx.doi.org/10.1038/srep05367 |
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