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Spin-stripe phase in a frustrated zigzag spin-1/2 chain

Author

Listed:
  • M. Pregelj

    (Jožef Stefan Institute)

  • A. Zorko

    (Jožef Stefan Institute)

  • O. Zaharko

    (Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute)

  • H. Nojiri

    (Institute for Materials Research, Tohoku University)

  • H. Berger

    (Ecole polytechnique fédérale de Lausanne)

  • L. C. Chapon

    (Institut Laue-Langevin)

  • D. Arčon

    (Jožef Stefan Institute
    Faculty of Mathematics and Physics, University of Ljubljana)

Abstract

Motifs of periodic modulations are encountered in a variety of natural systems, where at least two rival states are present. In strongly correlated electron systems, such behaviour has typically been associated with competition between short- and long-range interactions, for example, between exchange and dipole–dipole interactions in the case of ferromagnetic thin films. Here we show that spin-stripe textures may develop also in antiferromagnets, where long-range dipole–dipole magnetic interactions are absent. A comprehensive analysis of magnetic susceptibility, high-field magnetization, specific heat and neutron diffraction measurements unveils β-TeVO4 as a nearly perfect realization of a frustrated (zigzag) ferromagnetic spin-1/2 chain. Notably, a narrow spin-stripe phase develops at elevated magnetic fields due to weak frustrated short-range interchain exchange interactions, possibly assisted by the symmetry-allowed electric polarization. This concept provides an alternative route for the stripe formation in strongly correlated electron systems and may help understanding of other widespread, yet still elusive, stripe-related phenomena.

Suggested Citation

  • M. Pregelj & A. Zorko & O. Zaharko & H. Nojiri & H. Berger & L. C. Chapon & D. Arčon, 2015. "Spin-stripe phase in a frustrated zigzag spin-1/2 chain," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8255
    DOI: 10.1038/ncomms8255
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