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Hidden magnetic excitation in the pseudogap phase of a high-Tc superconductor

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  • Yuan Li

    (Stanford University
    Present addresses: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany (Y.L.); Institute of Physics, Bijenicka cesta 46, 10 000 Zagreb, Croatia (N.B.).)

  • V. Balédent

    (Laboratoire Léon Brillouin, CEA-CNRS, CEA-Saclay, 91191 Gif sur Yvette, France)

  • G. Yu

    (School of Physics and Astronomy, University of Minnesota)

  • N. Barišić

    (T.H. Geballe Laboratory for Advanced Materials, Stanford University
    1. Physikalisches Institut, Universität Stuttgart, 70550 Stuttgart, Germany
    Present addresses: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany (Y.L.); Institute of Physics, Bijenicka cesta 46, 10 000 Zagreb, Croatia (N.B.).)

  • K. Hradil

    (Institut für Physikalische Chemie, Universität Göttingen, 37077 Göttingen, Germany)

  • R. A. Mole

    (Forschungsneutronenquelle Heinz Maier-Leibnitz, 85747 Garching, Germany)

  • Y. Sidis

    (Laboratoire Léon Brillouin, CEA-CNRS, CEA-Saclay, 91191 Gif sur Yvette, France)

  • P. Steffens

    (Institut Laue Langevin)

  • X. Zhao

    (T.H. Geballe Laboratory for Advanced Materials, Stanford University
    State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China)

  • P. Bourges

    (Laboratoire Léon Brillouin, CEA-CNRS, CEA-Saclay, 91191 Gif sur Yvette, France)

  • M. Greven

    (School of Physics and Astronomy, University of Minnesota)

Abstract

The pseudogap enters a new phase The pseudogap phenomenon, a discontinuity in the energy level of a material's electronic spectrum, is a universal characteristic of the high transition temperature (Tc) copper oxides. The nature of the pseudogap has been a central question in condensed matter physics for more than a decade, but many of its properties remain unexplained. Recent studies have pointed to the universal existence of an unusual magnetic order below T*, the temperature below which the anomalous properties associated with the pseudogap become apparent. If confirmed, this would have the profound implication that the pseudogap regime constitutes a genuine new phase of matter rather than a mere crossover phenomenon. The results of inelastic neutron scattering experiments on the superconductor HgBa2CuO4+δ (Hg1201) now reveal a fundamental collective magnetic mode associated with the unusual order, providing further support for this picture.

Suggested Citation

  • Yuan Li & V. Balédent & G. Yu & N. Barišić & K. Hradil & R. A. Mole & Y. Sidis & P. Steffens & X. Zhao & P. Bourges & M. Greven, 2010. "Hidden magnetic excitation in the pseudogap phase of a high-Tc superconductor," Nature, Nature, vol. 468(7321), pages 283-285, November.
    • Handle: RePEc:nat:nature:v:468:y:2010:i:7321:d:10.1038_nature09477
    DOI: 10.1038/nature09477
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    Cited by:

    1. Riccardo Arpaia & Leonardo Martinelli & Marco Moretti Sala & Sergio Caprara & Abhishek Nag & Nicholas B. Brookes & Pietro Camisa & Qizhi Li & Qiang Gao & Xingjiang Zhou & Mirian Garcia-Fernandez & Ke-, 2023. "Signature of quantum criticality in cuprates by charge density fluctuations," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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