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dc.contributor.authorSamajdar, Rhine
dc.contributor.authorScheurer, Mathias
dc.contributor.authorChatterjee, Shubhayu
dc.contributor.authorGuo, Haoyu
dc.contributor.authorXu, Cenke
dc.contributor.authorSachdev, Subir
dc.date.accessioned2019-11-07T22:30:45Z
dc.date.issued2019-10-07
dc.identifier.citationScheurer, Mathias, Mathias Scheurer, Shubhayu Chatterjee, Haoyu Guo, Cenke Xu, and Subir Sachdev. 2019. Enhanced Thermal Hall Effect in the Square-lattice Néel State. Nature Physics.en_US
dc.identifier.issn1745-2473en_US
dc.identifier.issn1745-2481en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41788876*
dc.description.abstractRecent experiments on several cuprate compounds have identified an enhanced thermal Hall response in the pseudogap phase. Most strikingly, this enhancement persists even in the undoped system, which challenges our understanding of the insulating parent compounds. To explain these surprising observations, we study the quantum phase transition of a square-lattice antiferromagnet from a confining Neel state to a state with coexisting Neel and semion topological order. The transition is driven by an applied magnetic field and involves no change in the symmetry of the state. The critical point is described by a strongly-coupled conformal field theory with an emergent global SO(3) symmetry. The field theory has four different formulations in terms of SU(2) or U(1) gauge theories, which are all related by dualities; we relate all four theories to the lattice degrees of freedom. We show how proximity of the confining Neel state to the critical point can explain the enhanced thermal Hall effect seen in experiment.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherSpringer Science and Business Media LLCen_US
dc.relationNature Physicsen_US
dc.relation.hasversionhttp://arxiv.org/abs/1903.01992en_US
dash.licenseLAA
dc.subjectGeneral Physics and Astronomyen_US
dc.titleEnhanced Thermal Hall Effect in the Square-Lattice Néel Stateen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalNature Physicsen_US
dash.depositing.authorSachdev, Subir
dash.waiver2019-08-14
dc.date.available2019-11-07T22:30:45Z
dash.affiliation.otherHarvard Collegeen_US
dash.funder.nameNational Science Foundationen_US
dash.funder.nameERCen_US
dash.funder.nameGerman National Academy of Sciences Leopoldinaen_US
dash.funder.awardDMR-1664842en_US
dash.funder.awardUQUAMen_US
dash.funder.awardLPDS 2016-12en_US
dc.identifier.doi10.1038/s41567-019-0669-3
dc.source.journalNat. Phys.
dash.contributor.affiliatedGuo, Haoyu
dash.contributor.affiliatedSamajdar, Rhine
dash.contributor.affiliatedScheurer, Mathias
dash.contributor.affiliatedSachdev, Subir


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