多铁性钙钛矿薄膜的氧空位调控研究进展

Oxygen vacancies induced tuning effect on physical properties of multiferroic perovskite oxide thin films

精确调控ABO_3钙钛矿结构中氧空位的位置与浓度已被证明可调控多铁性薄膜的不同物理性质,包括输运特性、光学特性和多铁性质等.本文回顾了多种典型的多铁性材料,从氧空位形成机理、氧八面体结构、应变-氧空位关系和具体物性调控效应(多铁、超导和电化学性能)等角度介绍了该体系中氧空位调控效应.同时依托氧空位调控的最新研究进展,尤其是对氧空位调控单相材料多铁性质方面工作的分析,为探索新型磁电功能性材料与器件提供了重要参考.

By controlling the position and concentration of oxygen vacancies, the relevant physical properties of the multiferroic ABO3 perovskite thin film can be modulated, including electric, optical and multiferroic properties. In this paper, we briefly review the various typical multiferroics. The details of oxygen vacancies are introduced, including the formation mechanism, oxygen octahedral structure, relationship between strain and oxygen vacancy, and specific tuning effect on the physical properties（multiferroic, superconductivity and electrochemical behavior）. The latest research progress of the oxygen vacancies induced tuning effect, especially in the field of the multiferroic, provides valuable reference for exploring novel magnetoelectric functional materials and devices.