Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering (Articolo in rivista)

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  • Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.88.020501 (literal)
Alternative label
  • Le Tacon, M.a, Minola, M.b, Peets, D.C.a, Moretti Sala, M.c, Blanco-Canosa, S.a, Hinkov, V.ad, Liang, R.ef, Bonn, D.A.ef, Hardy, W.N.ef, Lin, C.T.a, Schmitt, T.g, Braicovich, L.b, Ghiringhelli, G.b, Keimer, B.a (2013)
    Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
    in Physical review. B, Condensed matter and materials physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Le Tacon, M.a, Minola, M.b, Peets, D.C.a, Moretti Sala, M.c, Blanco-Canosa, S.a, Hinkov, V.ad, Liang, R.ef, Bonn, D.A.ef, Hardy, W.N.ef, Lin, C.T.a, Schmitt, T.g, Braicovich, L.b, Ghiringhelli, G.b, Keimer, B.a (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84880784739&partnerID=q2rCbXpz (literal)
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  • 88 (literal)
Rivista
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  • 2 (literal)
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  • Scopu (literal)
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  • a Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany b CNR-SPIN, Dipartimento di Fisica, Politecnico di Milano, I-20133 Milan, Italy c European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France d Max Planck-UBC Center for Quantum Materials, Vancouver, Canada e Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada f Canadian Institute for Advanced Research, Toronto, Canada g Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland (literal)
Titolo
  • Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering (literal)
Abstract
  • Using resonant inelastic x-ray scattering (RIXS) at the Cu L-absorption edge, we have observed intense, dispersive spin excitations in highly overdoped Tl2Ba2CuO6+? (superconducting T c=6 K), a model compound whose normal-state charge transport and thermodynamic properties have been shown to exhibit canonical Fermi-liquid behavior. Complementary RIXS experiments on slightly overdoped Tl 2Ba2CuO6+? (Tc=89 K) and on Y1-xCaxBa2Cu3O6+? compounds spanning a wide range of doping levels indicate that these excitations exhibit energies and energy-integrated spectral weights closely similar to those of antiferromagnetic magnons in undoped cuprates, indicating the persistence of substantial antiferromagnetic spin correlations over a wide doping range. The surprising coexistence of such correlations with Fermi-liquid-like charge excitations in highly overdoped cuprates poses a challenge to current theoretical models of correlated-electron metals. © 2013 American Physical Society. (literal)
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