Topological Phase Transitions in the Repulsively Interacting Haldane-Hubbard Model

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Vanhala, Tuomas I. Siro, Topi Liang, Long Troyer, Matthias Harju, Ari Törmä, Päivi 2016-10-12T11:09:52Z 2016-06-02
dc.identifier.citation Vanhala , T I , Siro , T , Liang , L , Troyer , M , Harju , A & Törmä , P 2016 , ' Topological Phase Transitions in the Repulsively Interacting Haldane-Hubbard Model ' Physical Review Letters , vol 116 , no. 22 , 225305 , pp. 1-6 . DOI: 10.1103/PhysRevLett.116.225305 en
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.identifier.other PURE UUID: 4db021ad-dcf1-4965-aa7b-54df926b80ef
dc.identifier.other PURE ITEMURL:
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dc.description.abstract Using dynamical mean-field theory and exact diagonalization we study the phase diagram of the repulsive Haldane-Hubbard model, varying the interaction strength and the sublattice potential difference. In addition to the quantum Hall phase with Chern number C=2 and the band insulator with C=0 present already in the noninteracting model, the system also exhibits a C=0 Mott insulating phase, and a C=1 quantum Hall phase. We explain the latter phase by a spontaneous symmetry breaking where one of the spin components is in the Hall state and the other in the band insulating state. en
dc.format.extent 1-6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/FP7/340748/EU//CODE
dc.relation.ispartofseries Physical Review Letters en
dc.relation.ispartofseries Volume 116, issue 22 en
dc.rights openAccess en
dc.subject.other Physics and Astronomy(all) en
dc.subject.other 114 Physical sciences en
dc.title Topological Phase Transitions in the Repulsively Interacting Haldane-Hubbard Model en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department Swiss Federal Institute of Technology Zurich
dc.subject.keyword Physics and Astronomy(all)
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201610124786
dc.identifier.doi 10.1103/PhysRevLett.116.225305
dc.type.version publishedVersion

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