Highly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O7 from inelastic neutron scattering

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dc.contributor.authorRaichle, Men_AU
dc.contributor.authorReznik, Den_AU
dc.contributor.authorLamago, Den_AU
dc.contributor.authorHeid, Ren_AU
dc.contributor.authorLi, Yen_AU
dc.contributor.authorBakr, Men_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorHinkov, Ven_AU
dc.contributor.authorHradil, Ken_AU
dc.contributor.authorLin, CTen_AU
dc.contributor.authorKeimer, Ben_AU
dc.date.accessioned2014-05-05T04:44:10Zen_AU
dc.date.available2014-05-05T04:44:10Zen_AU
dc.date.issued2011-10-19en_AU
dc.date.statistics2014-05-05en_AU
dc.description.abstractMotivated by predictions of a substantial contribution of the "buckling'' vibration of the CuO2 layers to d-wave superconductivity in the cuprates, we have performed an inelastic neutron scattering study of this phonon in an array of untwinned crystals of YBa2Cu3O7. The data reveal a pronounced softening of the phonon at the in-plane wave vector q = (0, 0.3) upon cooling below similar to 105 K, but no corresponding anomaly at q = (0.3,0). Based on the observed in-plane anisotropy, we argue that the electron-phonon interaction responsible for this anomaly supports an electronic instability associated with a uniaxial charge-density modulation and does not mediate d-wave superconductivity. © 2011, American Physical Society.en_AU
dc.identifier.articlenumber177004en_AU
dc.identifier.citationRaichle, M., Reznik, D., Lamago, D., Heid, R., Li, Y., Bakr, M., Ulrich, C., Hinkov, V., Hradil, K., Lin, C. T., & Keimer, B. (2011). Highly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O7 from inelastic neutron scattering. Physical Review Letters, 107(17), 177004. doi:10.1103/PhysRevLett.107.177004en_AU
dc.identifier.govdoc4544en_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.issue17en_AU
dc.identifier.journaltitlePhysical Review Lettersen_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.107.177004en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5540en_AU
dc.identifier.volume107en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectSuperconductorsen_AU
dc.subjectOxidesen_AU
dc.subjectSpinen_AU
dc.subjectSymmetryen_AU
dc.subjectLayersen_AU
dc.subjectNeutronsen_AU
dc.titleHighly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O7 from inelastic neutron scatteringen_AU
dc.typeJournal Articleen_AU
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