Nature Communications (Oct 2021)

Boson-peak-like anomaly caused by transverse phonon softening in strain glass

  • Shuai Ren,
  • Hong-Xiang Zong,
  • Xue-Fei Tao,
  • Yong-Hao Sun,
  • Bao-An Sun,
  • De-Zhen Xue,
  • Xiang-Dong Ding,
  • Wei-Hua Wang

DOI
https://doi.org/10.1038/s41467-021-26029-w
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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Strain glass is a new glassy state characterized by frozen ferroelastic nanodomains. Here, the authors discover a low-temperature feature in the specific heat of a strain glass, which is similar to the well-known boson peak anomaly of structural glasses, but cannot be explained by existing mechanisms.