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Breakdown of the Bardeen–Cooper–Schrieffer ground state at a quantum phase transition

Author

Listed:
  • R. Jaramillo

    (The University of Chicago, Chicago, Illinois 60637, USA)

  • Yejun Feng

    (The University of Chicago, Chicago, Illinois 60637, USA
    The Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA)

  • J. C. Lang

    (The Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA)

  • Z. Islam

    (The Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA)

  • G. Srajer

    (The Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA)

  • P. B. Littlewood

    (Cavendish Laboratory, University of Cambridge)

  • D. B. McWhan

    (Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA)

  • T. F. Rosenbaum

    (The University of Chicago, Chicago, Illinois 60637, USA)

Abstract

Chromium goes exotic Quantum phase transitions are attracting increasing attention as the conceptual link between conventional and exotic states of quantum matter: they have been implicated, for example, in the properties of high-temperature superconductors. But few model systems have been identified in which these enigmatic transitions can be readily studied and understood. Now Jaramillo et al. reveal that placing simple elemental chromium under pressure at low temperatures suppresses its normal magnetic state, and gives direct experimental access to the underlying quantum phase transition responsible for these changes.

Suggested Citation

  • R. Jaramillo & Yejun Feng & J. C. Lang & Z. Islam & G. Srajer & P. B. Littlewood & D. B. McWhan & T. F. Rosenbaum, 2009. "Breakdown of the Bardeen–Cooper–Schrieffer ground state at a quantum phase transition," Nature, Nature, vol. 459(7245), pages 405-409, May.
    • Handle: RePEc:nat:nature:v:459:y:2009:i:7245:d:10.1038_nature08008
    DOI: 10.1038/nature08008
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