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Multiferroic Transitions and Misfit Phase Diagram in Oxygen‐Deficient Epitaxial (111) PbTiO 3
Author(s) -
Shimada Takahiro,
Araki Yasumitsu,
Xu Tao,
Wang Jie,
Kitamura Takayuki
Publication year - 2016
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201600113
Subject(s) - multiferroics , ferroelectricity , condensed matter physics , materials science , phase diagram , phase transition , polarization (electrochemistry) , ferromagnetism , epitaxy , magnetism , phase (matter) , crystallography , nanotechnology , optoelectronics , physics , chemistry , quantum mechanics , layer (electronics) , dielectric
Unusual multiferroic phase transitions in intrinsically nonmagnetic ferroelectric PbTiO 3 are demonstrated. Misfit strain activates local (anti)ferromagnetism at oxygen vacancies in PbTiO 3 via the orbital symmetry breaking and splitting of the defect electronic states. A nonlinear magnetoelectric effect is present due to magnetic phase transitions coincident with ferroelectric polarization switching, providing a new route to magnetoelectric and multiferroic oxides.