Determining fundamental properties from diffraction: Electric field induced strain and piezoelectric coefficient

M. Hinterstein, K.-Y. Lee, S. Esslinger, J. Glaum, A. J. Studer, M. Hoffman, and M. J. Hoffmann
Phys. Rev. B 99, 174107 – Published 17 May 2019

Abstract

Neutron powder diffraction was used in operando to determine the macroscopic strain and piezoelectric coefficient as a function of applied electric field in a technically relevant actuator material. We were able to individually investigate the two coexisting phases in the material and reveal the origin of maximized strain at phase boundaries. Insight into the strain mechanisms gives evidence that, on average, the classic inverse piezoelectric effect does not apply for polycrystalline materials.

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  • Received 19 April 2018
  • Revised 29 April 2019

DOI:https://doi.org/10.1103/PhysRevB.99.174107

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

M. Hinterstein1,5,*, K.-Y. Lee1, S. Esslinger2, J. Glaum3, A. J. Studer4, M. Hoffman5, and M. J. Hoffmann1

  • 1Institute for Applied Materials, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
  • 2Fraunhofer Institute of Ceramic Technologies and Systems, 01277 Dresden, Germany
  • 3Material Science and Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
  • 4Australian Centre for Neutron Science, ANSTO, Locked Bag 2001, Kirrawee NSW 2232, Australia
  • 5School of Materials Science and Engineering, UNSW, Sydney NSW 2052, Australia

  • *manuel.hinterstein@kit.edu

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Vol. 99, Iss. 17 — 1 May 2019

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