Influence of oxygen vacancies and La0.7Sr0.3MnO3 layer on the structure and magnetic properties of cobalt ferrite thin films

被引：6
作者：
Gao, G. Q. [1 ]
Jin, C. [1 ]
Wang, P. [1 ]
Pang, X. [1 ]
Zheng, D. X. [1 ]
Bai, H. L. [1 ]
机构：
[1] Tianjin Univ, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Fac Sci, Tianjin 300350, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 460卷
基金：
中国国家自然科学基金;
关键词：
Cobalt ferrite film; Ferrimagnetism; Oxygen vacancies; Magnetic properties; PULSED-LASER DEPOSITION; LOW-TEMPERATURE; COFE2O4; FE3O4; GROWTH; TRANSITION; ANISOTROPY; SUBSTRATE; BEHAVIOR;
D O I：
10.1016/j.jmmm.2018.04.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
CoFe2O4 thin film is expected to be used as the spin filter in spintronics. In order to prepare high-quality CoFe2O4 thin films for spin filtering, we studied the influence of oxygen vacancies on the structure and magnetic properties of cobalt ferrite (Co1-xFe2+xO4, CFO) films prepared in different atmosphere, and obtained the CFO films without significant soft magnetic phase under optimum Ar and O-2 atmosphere condition. We further investigated the magnetic properties of the CFO/La0.7Sr0.3MnO3 (CFO/LSMO) bilayers containing various thicknesses of CFO films, and found that the CFO/LSMO bilayers with the ultrathin CFO films primarily display the soft magnetic properties. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：361 / 367
页数：7
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