Nature Communications (May 2020)

Colossal flexoresistance in dielectrics

  • Sung Min Park,
  • Bo Wang,
  • Tula Paudel,
  • Se Young Park,
  • Saikat Das,
  • Jeong Rae Kim,
  • Eun Kyo Ko,
  • Han Gyeol Lee,
  • Nahee Park,
  • Lingling Tao,
  • Dongseok Suh,
  • Evgeny Y. Tsymbal,
  • Long-Qing Chen,
  • Tae Won Noh,
  • Daesu Lee

DOI
https://doi.org/10.1038/s41467-020-16207-7
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 8

Abstract

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Manipulating the electric state of large band gap dielectrics without any damage is quite challenging. Here, the authors demonstrate by mechanically introducing strain gradients that large electric fields are generated via flexoelectric interactions, resulting in a reversible Zener breakdown in SrTiO3, changing the resistivity by 108.