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|Title:||Emergent spin liquids in the hubbard model on the anisotropic honeycomb lattice||Authors:||Wang, G.
|Issue Date:||Aug-2011||Citation:||Wang, G., Goerbig, M.O., Miniatura, C., Grémaud, B. (2011-08). Emergent spin liquids in the hubbard model on the anisotropic honeycomb lattice. EPL 95 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/95/47013||Abstract:||We study the repulsive Hubbard model on an anisotropic honeycomb lattice within a mean-field and a slave-rotor treatment. In addition to the known semi-metallic and band-insulating phases, obtained for very weak interactions, and the anti-ferromagnetic phase at large couplings, various insulating spin-liquid phases develop at intermediate couplings. Whereas some of these spin liquids have gapless spinon excitations, a gapped one occupies a large region of the phase diagram and becomes the predominant phase for large hopping anisotropies. This phase can be understood in terms of weakly coupled strongly dimerized states. © 2011 EPLA.||Source Title:||EPL||URI:||http://scholarbank.nus.edu.sg/handle/10635/115087||ISSN:||02955075||DOI:||10.1209/0295-5075/95/47013|
|Appears in Collections:||Staff Publications|
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