期刊
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
卷 217, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201900848
关键词
annealing; monophased LaCoOx films; oxygen migration; oxygen vacancy-ordered oxides; surface desorption
资金
- National Key R&D Program of China [2017YFA0303600, 2016YFA0202300]
- National Natural Science Foundation of China [11634016]
- Strategic Priority Research Program (B) of the Chinese Academy of Sciences [XDB07030100]
- Research Program of Beijing Academy of Quantum Information Sciences [Y18G09]
- Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics [KF201716]
Compared to their parent materials, oxygen vacancy (V-O)-ordered phases of complex oxides exhibit distinct physical properties and show great potential in multifunctional devices. With the expected unique behaviors, however, most of the V-O-ordered oxide films are extremely difficult to synthesize due to their thermodynamic instabilities. Herein, using LaCoOx as an example, the synthesis of large-scale monophased V-O-ordered LaCoO2.67 and LaCoO2.5 films is realized by annealing as-grown perovskite LaCoO3 films in vacuum with a special heating method. Their macroscopic properties, including the magnetic and electric transport and optical properties, are measured. It is demonstrated that the functionalities of LaCoOx films can be manipulated by tuning the concentration and ordering of the V-O. The method in this work can be applied to fabricate a wide range of V-O-ordered oxide films.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据