IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v407y2000i6802d10.1038_35030039.html
   My bibliography  Save this article

Onset of antiferromagnetism in heavy-fermion metals

Author

Listed:
  • A. Schröder

    (Physikalisches Institut, Universität Karlsruhe)

  • G. Aeppli

    (NEC)

  • R. Coldea

    (Oak Ridge National Laboratory
    ISIS Facility, CCLRC, Rutherford-Appleton Laboratory)

  • M. Adams

    (ISIS Facility, CCLRC, Rutherford-Appleton Laboratory)

  • O. Stockert

    (Physikalisches Institut, Universität Karlsruhe
    University of Bristol)

  • H.v. Löhneysen

    (Physikalisches Institut, Universität Karlsruhe)

  • E. Bucher

    (University of Konstanz
    Bell Laboratories, Lucent Technologies)

  • R. Ramazashvili

    (University of Illinois)

  • P. Coleman

    (Center for Materials Theory, Rutgers University)

Abstract

There are two main theoretical descriptions of antiferromagnets. The first arises from atomic physics, which predicts that atoms with unpaired electrons develop magnetic moments. In a solid, the coupling between moments on nearby ions then yields antiferromagnetic order at low temperatures1. The second description, based on the physics of electron fluids or ‘Fermi liquids’, states that Coulomb interactions can drive the fluid to adopt a more stable configuration by developing a spin density wave2,3. It is at present unknown which view is appropriate at a ‘quantum critical point’, where the antiferromagnetic transition temperature vanishes4,5,6,7. Here we report neutron scattering and bulk magnetometry measurements of the metal CeCu6-xAux, which allow us to discriminate between the two models. We find evidence for an atomically local contribution to the magnetic correlations which develops at the critical gold concentration (xc = 0.1 ), corresponding to a magnetic ordering temperature of zero. This contribution implies that a Fermi-liquid-destroying spin-localizing transition, unanticipated from the spin density wave description, coincides with the antiferromagnetic quantum critical point.

Suggested Citation

  • A. Schröder & G. Aeppli & R. Coldea & M. Adams & O. Stockert & H.v. Löhneysen & E. Bucher & R. Ramazashvili & P. Coleman, 2000. "Onset of antiferromagnetism in heavy-fermion metals," Nature, Nature, vol. 407(6802), pages 351-355, September.
  • Handle: RePEc:nat:nature:v:407:y:2000:i:6802:d:10.1038_35030039
    DOI: 10.1038/35030039
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/35030039
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.

    File URL: https://libkey.io/10.1038/35030039?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:nature:v:407:y:2000:i:6802:d:10.1038_35030039. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.