Multiferroic Transitions and Misfit Phase Diagram in Oxygen‐Deficient Epitaxial (111) PbTiO3

Abstract

Unusual multiferroic phase transitions in intrinsically nonmagnetic ferroelectric PbTiO3 are demonstrated. Misfit strain activates local (anti)ferromagnetism at oxygen vacancies in PbTiO3 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. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.