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Ferroelectric Materials: Nanoscale Atomic Displacements Ordering for Enhanced Piezoelectric Properties in Lead‐Free ABO 3 Ferroelectrics (Adv. Mater. 29/2015)
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.201570196
Subject(s) - materials science , piezoelectricity , ferroelectricity , phonon , nanoscopic scale , condensed matter physics , synchrotron , scattering , inelastic neutron scattering , synchrotron radiation , lattice (music) , instability , neutron scattering , nanotechnology , optics , composite material , optoelectronics , dielectric , physics , acoustics , mechanics
Nanoscale ordering of atomic displacements is demonstrated as an effective parameter for enhancing piezoelectric susceptibility in lead‐free ferroelectrics by A. Pramanick and co‐workers on page 4330. The increased degree of ordering for atomic displacements under an electric field is revealed by synchrotron X‐ray diffuse scattering measurements (shown in the background). As a result of this ordering, the instability of the lattice toward mechanical deformation is increased, as shown by inelastic neutron scattering measurements of acoustic phonons, which are depicted as propagating vibrations across the atoms in the lattice.