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Nanoscale structure and mechanism for enhanced electromechanical response of highly Strained BiFeO3 thin films.

  • Author(s): Damodaran, Anoop R
  • Liang, Chen-Wei
  • He, Qing
  • Peng, Chun-Yen
  • Chang, Li
  • Chu, Ying-Hao
  • Martin, Lane W
  • et al.
Abstract

The presence of a variety of structural variants in BiFeO thin films give rise to exotic electric-field-induced responses and resulting electromechanical responses as large as 5%. Using high-resolution X-ray diffraction and scanning-probe-microscopy-based studies the numerous phases present at the phase boundaries are identified and an intermediate monoclinic phase, in addition to the previously observed rhombohedral- and tetragonal-like phases, is discovered. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 3

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