Nature Communications (Feb 2022)

Comparison of temperature and doping dependence of elastoresistivity near a putative nematic quantum critical point

  • J. C. Palmstrom,
  • P. Walmsley,
  • J. A. W. Straquadine,
  • M. E. Sorensen,
  • S. T. Hannahs,
  • D. H. Burns,
  • I. R. Fisher

DOI
https://doi.org/10.1038/s41467-022-28583-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 6

Abstract

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Evidence for quantum criticality in Fe-based superconductors is still being accumulated. Here, the authors observe power-law behavior of the elastoresistivity as a function of composition in Ba(Fe1−x Co x )2As2 near a putative nematic quantum critical point, consistent with expectations for quantum criticality, while the temperature dependence near the critical doping deviates from a power law.