Premium
Conductive Interfaces: Mobile Domain Walls as a Bridge between Nanoscale Conductivity and Macroscopic Electromechanical Response (Adv. Funct. Mater. 14/2015)
Author(s) -
Rojac Tadej,
Ursic Hana,
Bencan Andreja,
Malic Barbara,
Damjanovic Dragan
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201570094
Subject(s) - materials science , electrical conductor , nanoscopic scale , poling , piezoelectricity , multiferroics , conductivity , crystallite , ceramic , nanotechnology , optoelectronics , composite material , ferroelectricity , dielectric , chemistry , metallurgy
A bridge connecting electrical conductivity at the nanoscale and macroscopic electromechanical response is revealed in polycrystalline, multiferroic BiFeO 3 by T. Rojac and team on page 2099. Evidence of spontaneously formed conductive domain walls is presented, and it is shown that these local conductive paths persist after poling the ceramics. The conductive domains walls move significantly under applied subswitching electric fields and lead to a large enhancement of the macroscopic piezoelectric response.