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Hidden one-dimensional spin modulation in a three-dimensional metal

Author

Listed:
  • Yejun Feng

    (The Advanced Photon Source, Argonne National Laboratory
    University of Chicago)

  • Jiyang Wang

    (University of Chicago)

  • A. Palmer

    (University of Chicago)

  • J. A. Aguiar

    (Los Alamos National Laboratory)

  • B. Mihaila

    (Los Alamos National Laboratory
    National Science Foundation)

  • J.-Q. Yan

    (University of Tennessee
    Oak Ridge National Laboratory)

  • P. B. Littlewood

    (University of Chicago
    Physical Sciences and Engineering, Argonne National Laboratory)

  • T. F. Rosenbaum

    (University of Chicago)

Abstract

Pressure can transform a transparent material into an opaque one, quench the moments in a magnet and force solids to flow like liquids. At 15 GPa, the pressure found 500 km below the earth’s surface, the semiconductors silicon and germanium superconduct. Yet, at this same pressure, we show here that the magnetism in metallic GdSi remains completely robust even as it shrinks by one-seventh of its volume. Non-resonant X-ray magnetic diffraction in a specially designed diamond anvil cell, combined with band structure calculations, reveal the stability of the incommensurate spin density wave, which can be traced to a persistently nested portion of the Fermi surface that becomes increasingly one-dimensional under pressure. A cooperative interaction between nested, itinerant spins and local magnetic moments provides the organizing principle for the modulated magnetic order, salient both for its insights into the role of topology in ordered states and its potential functionality.

Suggested Citation

  • Yejun Feng & Jiyang Wang & A. Palmer & J. A. Aguiar & B. Mihaila & J.-Q. Yan & P. B. Littlewood & T. F. Rosenbaum, 2014. "Hidden one-dimensional spin modulation in a three-dimensional metal," Nature Communications, Nature, vol. 5(1), pages 1-6, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5218
    DOI: 10.1038/ncomms5218
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