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Nanoscale Atomic Displacements Ordering for Enhanced Piezoelectric Properties in Lead‐Free ABO 3 Ferroelectrics
Author(s) -
Pramanick Abhijit,
Jørgensen Mads R. V.,
Diallo Souleymane O.,
Christianson Andrew D.,
FernandezBaca Jaime A.,
Hoffmann Christina,
Wang Xiaoping,
Lan Si,
Wang XunLi
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201501274
Subject(s) - materials science , piezoelectricity , ferroelectricity , nanoscopic scale , condensed matter physics , electric field , scattering , synchrotron , neutron scattering , synchrotron radiation , instability , chemical physics , nanotechnology , optics , optoelectronics , composite material , dielectric , physics , quantum mechanics , mechanics
In situ synchrotron X‐ray diffuse scattering and inelastic neutron scattering measurements from a prototype ABO 3 ferroelectric single‐crystal are used to elucidate how electric fields along a nonpolar direction can enhance its piezoelectric properties. The central mechanism is found to be a nanoscale ordering of B atom displacements, which induces increased lattice instability and therefore a greater susceptibility to electric‐field‐induced mechanical deformation.