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Evidence for a three-dimensional quantum spin liquid in PbCuTe2O6

Author

Listed:
  • Shravani Chillal

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Yasir Iqbal

    (Indian Institute of Technology Madras)

  • Harald O. Jeschke

    (Okayama University)

  • Jose A. Rodriguez-Rivera

    (National Institute of Standards and Technology
    University of Maryland)

  • Robert Bewley

    (STFC Rutherford Appleton Laboratory)

  • Pascal Manuel

    (STFC Rutherford Appleton Laboratory)

  • Dmitry Khalyavin

    (STFC Rutherford Appleton Laboratory)

  • Paul Steffens

    (Institut Laue-Langevin)

  • Ronny Thomale

    (Julius-Maximilians-Universität Würzburg, Am Hubland)

  • A. T. M. Nazmul Islam

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Johannes Reuther

    (Helmholtz-Zentrum Berlin für Materialien und Energie
    Freie Universität Berlin)

  • Bella Lake

    (Helmholtz-Zentrum Berlin für Materialien und Energie
    Technische Universität Berlin)

Abstract

The quantum spin liquid is a highly entangled magnetic state characterized by the absence of static magnetism in its ground state. Instead, the spins fluctuate in a highly correlated way down to the lowest temperatures. Quantum spin liquids are very rare and are confined to a few specific cases where the interactions between the magnetic ions cannot be simultaneously satisfied (known as frustration). Lattices with magnetic ions in triangular or tetrahedral arrangements, which interact via isotropic antiferromagnetic interactions, can generate such a frustration. Three-dimensional isotropic spin liquids have mostly been sought in materials where the magnetic ions form pyrochlore or hyperkagome lattices. Here we present a three-dimensional lattice called the hyper-hyperkagome that enables spin liquid behaviour and manifests in the compound PbCuTe2O6. Using a combination of experiment and theory, we show that this system exhibits signs of being a quantum spin liquid with no detectable static magnetism together with the presence of diffuse continua in the magnetic spectrum suggestive of fractional spinon excitations.

Suggested Citation

  • Shravani Chillal & Yasir Iqbal & Harald O. Jeschke & Jose A. Rodriguez-Rivera & Robert Bewley & Pascal Manuel & Dmitry Khalyavin & Paul Steffens & Ronny Thomale & A. T. M. Nazmul Islam & Johannes Reut, 2020. "Evidence for a three-dimensional quantum spin liquid in PbCuTe2O6," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15594-1
    DOI: 10.1038/s41467-020-15594-1
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    Cited by:

    1. Matías G. Gonzalez & Vincent Noculak & Aman Sharma & Virgile Favre & Jian-Rui Soh & Arnaud Magrez & Robert Bewley & Harald O. Jeschke & Johannes Reuther & Henrik M. Rønnow & Yasir Iqbal & Ivica Živkov, 2024. "Dynamics of K2Ni2(SO4)3 governed by proximity to a 3D spin liquid model," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. Xiaoyu Guo & Wenhao Liu & Jonathan Schwartz & Suk Hyun Sung & Dechen Zhang & Makoto Shimizu & Aswin L. N. Kondusamy & Lu Li & Kai Sun & Hui Deng & Harald O. Jeschke & Igor I. Mazin & Robert Hovden & B, 2024. "Extraordinary phase transition revealed in a van der Waals antiferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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