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Author information

Affiliations

  1. nanomat/QMAT/CESAM, Université de Liège, and European Theoretical Spectroscopy Facility, B-4000 Liège, Belgium

    • Gabriele D’Avino
    •  & Matthieu J. Verstraete
  2. Institut Néel, CNRS and Grenoble Alpes University, F-38042 Grenoble, France

    • Gabriele D’Avino
  3. Laboratory for the Chemistry of Novel Materials, University of Mons, 7000 Mons, Belgium

    • Gabriele D’Avino
  4. Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)/CIBER-BBN, E-08193 Cerdanyola del Vallès, Spain

    • Manuel Souto
    • , Imma Ratera
    •  & Jaume Veciana
  5. Department of Chemistry, Life Science and Environmental Sustainability, Parma University and INSTM-UdR Parma, 43124 Parma, Italy

    • Matteo Masino
    • , Anna Painelli
    •  & Alberto Girlando
  6. Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, 86159 Augsburg, Germany

    • Jonas K. H. Fischer
    •  & Peter Lunkenheimer
  7. Serveis Científico-Tècnics, Campus de Montilivi, University of Girona, E-17071 Girona, Spain

    • Xavier Fontrodona
  8. CNR-IOM-Democritos National Simulation Centre and International School for Advanced Studies (SISSA), I-34136 Trieste, Italy

    • Gianluca Giovannetti

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Contributions

G.D. and A.G. designed the research and wrote the Comment with contributions from the other authors. Experimental work was performed by M.S. and I.R. (materials synthesis and crystallization), X.F. (X-ray diffraction), M.M. (vibrational spectra) and J.K.H.F. (dielectric measurements). G.D. and G.G. performed DFT calculations. All authors discussed the results and contributed to data analysis.

Competing interests

The authors declare no competing financial interests.

Corresponding author

Correspondence to Gabriele D’Avino.

Extended data

Supplementary information

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  1. 1.

    Supplementary Information

    This file contains Supplementary Text, Supplementary Figures 1-5, Supplementary Table 1 and Supplementary References.

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