Nature Communications (Feb 2019)

Enhanced flexoelectricity at reduced dimensions revealed by mechanically tunable quantum tunnelling

  • Saikat Das,
  • Bo Wang,
  • Tula R. Paudel,
  • Sung Min Park,
  • Evgeny Y. Tsymbal,
  • Long-Qing Chen,
  • Daesu Lee,
  • Tae Won Noh

DOI
https://doi.org/10.1038/s41467-019-08462-0
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 7

Abstract

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Flexoelectricity exists in every dielectric material exposed to a strain gradient and is enhanced at the nanoscale. However, precisely determining flexoelectric coupling parameters at the nanoscale is challenging, but has been overcome here by measuring the current across a tunnel junction.