Long-range transfer of electron-phonon coupling in oxide superlattices

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dc.contributor.authorDriza, Nen_AU
dc.contributor.authorBlanco-Canosa, Sen_AU
dc.contributor.authorBakr, Men_AU
dc.contributor.authorSoltan, Sen_AU
dc.contributor.authorKhalid, Men_AU
dc.contributor.authorMustafa, Len_AU
dc.contributor.authorKawashima, Ken_AU
dc.contributor.authorChristiani, Gen_AU
dc.contributor.authorHabermeier, HUen_AU
dc.contributor.authorKhaliullin, Gen_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorLe Tacon, Men_AU
dc.contributor.authorKeimer, Ben_AU
dc.date.accessioned2014-04-28T04:41:37Zen_AU
dc.date.available2014-04-28T04:41:37Zen_AU
dc.date.issued2012-08-01en_AU
dc.date.statistics2014-04-28en_AU
dc.description.abstractThe electron-phonon interaction is of central importance for the electrical and thermal properties of solids, and its influence on superconductivity, colossal magnetoresistance and other many-body phenomena in correlated-electron materials is the subject of intense research at present. However, the non-local nature of the interactions between valence electrons and lattice ions, often compounded by a plethora of vibrational modes, presents formidable challenges for attempts to experimentally control and theoretically describe the physical properties of complex materials. Here we report a Raman scattering study of the lattice dynamics in superlattices of the high-temperature superconductor YBa2Cu3O7 (YBCO) and the colossal-magnetoresistance compound La2/3Ca1/3MnO3 that suggests a new approach to this problem. We find that a rotational mode of the MnO6 octahedra in La2/3Ca1/3MnO3 experiences pronounced superconductivity-induced line-shape anomalies, which scale linearly with the thickness of the YBCO layers over a remarkably long range of several tens of nanometres. The transfer of the electron-phonon coupling between superlattice layers can be understood as a consequence of long-range Coulomb forces in conjunction with an orbital reconstruction at the interface. The superlattice geometry thus provides new opportunities for controlled modification of the electron-phonon interaction in complex materials. © 2012, Nature Publishing Group.en_AU
dc.identifier.citationDriza, N., Blanco-Canosa, S., Bakr, M., Soltan, S., Khalid, M., Mustafa, L., Kawashima, K., Christiani, G., Habermeier, H. U., Khaliullin, G., Ulrich, C., Le Tacon, M., & Keimer, B. (2012). Long-range transfer of electron-phonon coupling in oxide superlattices. Nature Materials, 11(8), 675-681. doi:10.1038/NMAT3378en_AU
dc.identifier.govdoc4561en_AU
dc.identifier.issn1476-1122en_AU
dc.identifier.issue8en_AU
dc.identifier.journaltitleNature Materialsen_AU
dc.identifier.pagination675-681en_AU
dc.identifier.urihttp://dx.doi.org/10.1038/NMAT3378en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5502en_AU
dc.identifier.volume11en_AU
dc.language.isoenen_AU
dc.publisherNature Publishing Groupen_AU
dc.subjectSuperconductivityen_AU
dc.subjectMagnetoresistanceen_AU
dc.subjectElectronsen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectStrainsen_AU
dc.subjectPhotonsen_AU
dc.titleLong-range transfer of electron-phonon coupling in oxide superlatticesen_AU
dc.typeJournal Articleen_AU
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