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Simultaneous loss of interlayer coherence and long-range magnetism in quasi-two-dimensional PdCrO2

Author

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  • S. Ghannadzadeh

    (High Field Magnet Laboratory (HFML-EMFL), Faculty of Science, Radboud University
    Institute of Molecules and Materials, Faculty of Science, Radboud University
    Oxford Instruments NanoScience)

  • S. Licciardello

    (High Field Magnet Laboratory (HFML-EMFL), Faculty of Science, Radboud University
    Institute of Molecules and Materials, Faculty of Science, Radboud University)

  • S. Arsenijević

    (High Field Magnet Laboratory (HFML-EMFL), Faculty of Science, Radboud University
    Institute of Molecules and Materials, Faculty of Science, Radboud University
    Dresden High Magnetic Field Laboratory (HLD-EMFL))

  • P. Robinson

    (High Field Magnet Laboratory (HFML-EMFL), Faculty of Science, Radboud University
    Institute of Molecules and Materials, Faculty of Science, Radboud University)

  • H. Takatsu

    (Tokyo Metropolitan University
    Graduate School of Engineering, Kyoto University)

  • M. I. Katsnelson

    (Institute of Molecules and Materials, Faculty of Science, Radboud University)

  • N. E. Hussey

    (High Field Magnet Laboratory (HFML-EMFL), Faculty of Science, Radboud University
    Institute of Molecules and Materials, Faculty of Science, Radboud University)

Abstract

In many layered metals, coherent propagation of electronic excitations is often confined to the highly conducting planes. While strong electron correlations and/or proximity to an ordered phase are believed to be the drivers of this electron confinement, it is still not known what triggers the loss of interlayer coherence in a number of layered systems with strong magnetic fluctuations, such as cuprates. Here, we show that a definitive signature of interlayer coherence in the metallic-layered triangular antiferromagnet PdCrO2 vanishes at the Néel transition temperature. Comparison with the relevant energy scales and with the isostructural non-magnetic PdCoO2 reveals that the interlayer incoherence is driven by the growth of short-range magnetic fluctuations. This establishes a connection between long-range order and interlayer coherence in PdCrO2 and suggests that in many other low-dimensional conductors, incoherent interlayer transport also arises from the strong interaction between the (tunnelling) electrons and fluctuations of some underlying order.

Suggested Citation

  • S. Ghannadzadeh & S. Licciardello & S. Arsenijević & P. Robinson & H. Takatsu & M. I. Katsnelson & N. E. Hussey, 2017. "Simultaneous loss of interlayer coherence and long-range magnetism in quasi-two-dimensional PdCrO2," Nature Communications, Nature, vol. 8(1), pages 1-6, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15001
    DOI: 10.1038/ncomms15001
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