Nature Communications (Feb 2020)

Ultralow thermal conductivity from transverse acoustic phonon suppression in distorted crystalline α-MgAgSb

  • Xiyang Li,
  • Peng-Fei Liu,
  • Enyue Zhao,
  • Zhigang Zhang,
  • Tatiana Guidi,
  • Manh Duc Le,
  • Maxim Avdeev,
  • Kazutaka Ikeda,
  • Toshiya Otomo,
  • Maiko Kofu,
  • Kenji Nakajima,
  • Jie Chen,
  • Lunhua He,
  • Yang Ren,
  • Xun-Li Wang,
  • Bao-Tian Wang,
  • Zhifeng Ren,
  • Huaizhou Zhao,
  • Fangwei Wang

DOI
https://doi.org/10.1038/s41467-020-14772-5
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 9

Abstract

Read online

In order to optimize thermoelectric (TE) materials which are used to convert thermal energy and electrical energy, the underlying physics needs to be understood. Here, the authors show that by exploiting static local structure distortion, transverse acoustic phonons can be suppressed resulting in high performing TE materials.