Electron-lattice interactions strongly renormalize the charge-transfer energy in the spin-chain cuprate Li2 CuO2
dc.bibliographicCitation.journalTitle | Nature Communications | eng |
dc.bibliographicCitation.volume | 7 | |
dc.contributor.author | Johnston, Steve | |
dc.contributor.author | Monney, Claude | |
dc.contributor.author | Bisogni, Valentina | |
dc.contributor.author | Zhou, Ke-Jin | |
dc.contributor.author | Kraus, Roberto | |
dc.contributor.author | Behr, Günter | |
dc.contributor.author | Strocov, Vladimir N. | |
dc.contributor.author | Málek, Jiři | |
dc.contributor.author | Drechsler, Stefan-Ludwig | |
dc.contributor.author | Geck, Jochen | |
dc.contributor.author | Schmitt, Thorsten | |
dc.contributor.author | van den Brink, Jeroen | |
dc.date.accessioned | 2018-06-07T16:42:23Z | |
dc.date.available | 2019-06-28T07:31:56Z | |
dc.date.issued | 2016 | |
dc.description.abstract | Strongly correlated insulators are broadly divided into two classes: Mott–Hubbard insulators, where the insulating gap is driven by the Coulomb repulsion U on the transition-metal cation, and charge-transfer insulators, where the gap is driven by the charge-transfer energy Δ between the cation and the ligand anions. The relative magnitudes of U and Δ determine which class a material belongs to, and subsequently the nature of its low-energy excitations. These energy scales are typically understood through the local chemistry of the active ions. Here we show that the situation is more complex in the low-dimensional charge-transfer insulator Li2CuO2, where Δ has a large non-electronic component. Combining resonant inelastic X-ray scattering with detailed modelling, we determine how the elementary lattice, charge, spin and orbital excitations are entangled in this material. This results in a large lattice-driven renormalization of Δ, which significantly reshapes the fundamental electronic properties of Li2CuO2. | eng |
dc.description.version | publishedVersion | eng |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.identifier.uri | https://doi.org/10.34657/4985 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/1495 | |
dc.language.iso | eng | eng |
dc.publisher | London : Nature Publishing Group | eng |
dc.relation.doi | https://doi.org/10.1038/ncomms10563 | |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject.ddc | 620 | eng |
dc.subject.other | Electronic properties and materials | eng |
dc.title | Electron-lattice interactions strongly renormalize the charge-transfer energy in the spin-chain cuprate Li2 CuO2 | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Ingenieurwissenschaften | eng |
wgl.type | Zeitschriftenartikel | eng |