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Nesting-driven multipolar order in CeB6 from photoemission tomography

Author

Listed:
  • A. Koitzsch

    (Institute for Solid State Research, IFW-Dresden)

  • N. Heming

    (Institute for Solid State Research, IFW-Dresden)

  • M. Knupfer

    (Institute for Solid State Research, IFW-Dresden)

  • B. Büchner

    (Institute for Solid State Research, IFW-Dresden)

  • P. Y. Portnichenko

    (Institut für Festkörperphysik, TU Dresden)

  • A. V Dukhnenko

    (I.M. Frantsevich Institute for Problems of Materials Science of NAS, 3 Krzhyzhanovsky str.)

  • N. Y. Shitsevalova

    (I.M. Frantsevich Institute for Problems of Materials Science of NAS, 3 Krzhyzhanovsky str.)

  • V. B. Filipov

    (I.M. Frantsevich Institute for Problems of Materials Science of NAS, 3 Krzhyzhanovsky str.)

  • L. L. Lev

    (Paul Scherrer Institut, Swiss Light Source
    National Research Centre Kurchatov Institute)

  • V. N. Strocov

    (Paul Scherrer Institut, Swiss Light Source)

  • J. Ollivier

    (Institut Laue-Langevin)

  • D. S. Inosov

    (Institut für Festkörperphysik, TU Dresden)

Abstract

Some heavy fermion materials show so-called hidden-order phases which are invisible to many characterization techniques and whose microscopic origin remained controversial for decades. Among such hidden-order compounds, CeB6 is of model character due to its simple electronic configuration and crystal structure. Apart from more conventional antiferromagnetism, it shows an elusive phase at low temperatures, which is commonly associated with multipolar order. Here we show that this phase roots in a Fermi surface instability. This conclusion is based on a full 3D tomographic sampling of the electronic structure by angle-resolved photoemission and comparison with inelastic neutron scattering data. The hidden order is mediated by itinerant electrons. Our measurements will serve as a paradigm for the investigation of hidden-order phases in f-electron systems, but also generally for situations where the itinerant electrons drive orbital or spin order.

Suggested Citation

  • A. Koitzsch & N. Heming & M. Knupfer & B. Büchner & P. Y. Portnichenko & A. V Dukhnenko & N. Y. Shitsevalova & V. B. Filipov & L. L. Lev & V. N. Strocov & J. Ollivier & D. S. Inosov, 2016. "Nesting-driven multipolar order in CeB6 from photoemission tomography," Nature Communications, Nature, vol. 7(1), pages 1-7, April.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10876
    DOI: 10.1038/ncomms10876
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