Nature Communications (Nov 2020)

High frequency atomic tunneling yields ultralow and glass-like thermal conductivity in chalcogenide single crystals

  • Bo Sun,
  • Shanyuan Niu,
  • Raphael P. Hermann,
  • Jaeyun Moon,
  • Nina Shulumba,
  • Katharine Page,
  • Boyang Zhao,
  • Arashdeep S. Thind,
  • Krishnamurthy Mahalingam,
  • JoAnna Milam-Guerrero,
  • Ralf Haiges,
  • Matthew Mecklenburg,
  • Brent C. Melot,
  • Young-Dahl Jho,
  • Brandon M. Howe,
  • Rohan Mishra,
  • Ahmet Alatas,
  • Barry Winn,
  • Michael E. Manley,
  • Jayakanth Ravichandran,
  • Austin J. Minnich

DOI
https://doi.org/10.1038/s41467-020-19872-w
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 9

Abstract

Read online

Defect-free crystals showing the glassy trend of low thermal conductivity with a monotonic increase with temperature are desirable but rare. Here, the authors observe atomic tunneling associated with low and glass-like thermal conductivity in a hexagonal perovskite chalcogenide single-crystal BaTiS3.