title: Electric field tunable half-metallic characteristic at Fe3O4/BaTiO3interfaces.
abstract: The interfacial electronic structure of Fe3O4/BaTiO3heterostructures was investigated using first-principles calculations. Owing to the two TiO-polarization directions, FeBO-terminated models show different interfacial binding strengths. Compared with the OTi-FeBO model, the TiO-FeBO model shows a spin polarization of 100% due to the hybridization effect of Ti 3d and FeB3d at the Fermi level, which can be modulated by the electric field and TiO polarization directions. Negative electric field can control the strength of the hybridization of the interfacial Ti and O with FeB, but the positive electric field has no significant effect on it. The tunable high spin polarization at Fe3O4/BaTiO3interfaces has potential applications in spintronic devices.
authors.affiliation: Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology & Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, Faculty of Science, Tianjin University, 300354, Tianjin, China. miwenbo@tju.edu.cn.
authors.forename: Xueyao
authors.initials: X
authors.lastname: Hou
authors.affiliation: School of Electronics Information Engineering, Tianjin University of Technology, 300384, Tianjin, China.
authors.forename: Xiaocha
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Material Science and Engineering, Hebei University of Technology, 300130, Tianjin, China.
authors.forename: Guifeng
authors.initials: G
authors.lastname: Chen
authors.affiliation: Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparation Technology & Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, Faculty of Science, Tianjin University, 300354, Tianjin, China. miwenbo@tju.edu.cn.
authors.forename: Wenbo
authors.identifier: http://orcid.org/0000-0002-9108-9930
authors.initials: W
authors.lastname: Mi