Nature Communications (Dec 2021)

Piezoelectricity in hafnia

  • Sangita Dutta,
  • Pratyush Buragohain,
  • Sebastjan Glinsek,
  • Claudia Richter,
  • Hugo Aramberri,
  • Haidong Lu,
  • Uwe Schroeder,
  • Emmanuel Defay,
  • Alexei Gruverman,
  • Jorge Íñiguez

DOI
https://doi.org/10.1038/s41467-021-27480-5
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

Read online

HfO2 is a promising ferroelectric material for applications in electronics but knowledge on its ferroic and electromechanical response properties is still lacking. Here, the authors demonstrate the peculiar piezoresponse of HfO2, predicting on how to reverse its sign by means of a biaxial strain.