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- Publisher Website: 10.1038/ncomms15814
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Article: Nearest-neighbour resonating valence bonds in YbMgGaO4
Title | Nearest-neighbour resonating valence bonds in YbMgGaO<inf>4</inf> |
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Authors | |
Issue Date | 2017 |
Citation | Nature Communications, 2017, v. 8 How to Cite? |
Abstract | © 2017 The Author(s). Since its proposal by Anderson, resonating valence bonds (RVB) formed by a superposition of fluctuating singlet pairs have been a paradigmatic concept in understanding quantum spin liquids. Here, we show that excitations related to singlet breaking on nearest-neighbour bonds describe the high-energ y part of the excitation spectrum in YbMgGaO 4 , the effective spin-1/2 frustrated antiferromagnet on the triangular lattice, as originally considered by Anderson. By a thorough single-crystal inelastic neutron scattering study, we demonstrate that nearest-neighbour RVB excitations account for the bulk of the spectral weight above 0.5 meV. This renders YbMgGaO 4 the first experimental system where putative RVB correlations restricted to nearest neighbours are observed, and poses a fundamental question of how complex interactions on the triangular lattice conspire to form this unique many-body state. |
Persistent Identifier | http://hdl.handle.net/10722/254462 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Li, Yuesheng | - |
dc.contributor.author | Adroja, Devashibhai | - |
dc.contributor.author | Voneshen, David | - |
dc.contributor.author | Bewley, Robert I. | - |
dc.contributor.author | Zhang, Qingming | - |
dc.contributor.author | Tsirlin, Alexander A. | - |
dc.contributor.author | Gegenwart, Philipp | - |
dc.date.accessioned | 2018-06-19T15:40:37Z | - |
dc.date.available | 2018-06-19T15:40:37Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Nature Communications, 2017, v. 8 | - |
dc.identifier.uri | http://hdl.handle.net/10722/254462 | - |
dc.description.abstract | © 2017 The Author(s). Since its proposal by Anderson, resonating valence bonds (RVB) formed by a superposition of fluctuating singlet pairs have been a paradigmatic concept in understanding quantum spin liquids. Here, we show that excitations related to singlet breaking on nearest-neighbour bonds describe the high-energ y part of the excitation spectrum in YbMgGaO 4 , the effective spin-1/2 frustrated antiferromagnet on the triangular lattice, as originally considered by Anderson. By a thorough single-crystal inelastic neutron scattering study, we demonstrate that nearest-neighbour RVB excitations account for the bulk of the spectral weight above 0.5 meV. This renders YbMgGaO 4 the first experimental system where putative RVB correlations restricted to nearest neighbours are observed, and poses a fundamental question of how complex interactions on the triangular lattice conspire to form this unique many-body state. | - |
dc.language | eng | - |
dc.relation.ispartof | Nature Communications | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Nearest-neighbour resonating valence bonds in YbMgGaO<inf>4</inf> | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/ncomms15814 | - |
dc.identifier.scopus | eid_2-s2.0-85021105643 | - |
dc.identifier.volume | 8 | - |
dc.identifier.spage | null | - |
dc.identifier.epage | null | - |
dc.identifier.eissn | 2041-1723 | - |
dc.identifier.isi | WOS:000403876200002 | - |
dc.identifier.issnl | 2041-1723 | - |