中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Exchange coupling and improved properties of the multilayer CoFe2O4/La0.7Sr0.3MnO3 thin films

文献类型:期刊论文

作者Tang, Xianwu1; Zhu, Shunjin1,3; Wei, Renhuai1; Hu, Ling1; Yang, Jie1; Song, Wenhai1; Dai, Jianming1; Zhu, Xuebin1; Sun, Yuping1,2
刊名COMPOSITES PART B-ENGINEERING
出版日期2020-04-01
卷号186
ISSN号1359-8368
关键词Composite multilayer films Exchange coupling CoFe2O4 Magnetic properties
DOI10.1016/j.compositesb.2020.107801
通讯作者Zhu, Xuebin(xbzhu@issp.ac.cn) ; Sun, Yuping(ypsun@issp.ac.cn)
英文摘要Hard/soft interface plays a role in the properties of the composite metal based magnets, while it is less talked in the composite permanent oxide magnets on the magnetic interaction and properties due to easy interdiffusion. Here, multilayer thin films composed with hard CoFe2O4 phase and soft La0.7Sr0.3MnO3 layers were choose and synthesized without interdiffusion by a chemical solution method. Furthermore, the effects of the annealing temperature and the number of soft layer on the magnetic interaction and properties are investigated. All composite films behavior as one rigidly coupled composite magnet at room temperature, and the magnetic properties increase with increasing annealing temperature. The coercivity and maximum magnetic energy product can respectively reach 8.27 kOe and 2.4 MG Oe at the temperature of 300 K. Exchange coupling was effectively enhanced and even dominate the magnetic interaction with less soft layers for the in-plane direction. Conversely, dipolar interaction predominates, but becomes weak in the composite films with more soft layers and attenuates with increasing annealing temperature for the out-of-plane direction. All of the results suggest that a suitable grain size of the hard phase and an improved interface may be more important for a rigidly coupled composite oxide magnet with good performance.
WOS关键词MAGNETIC-PROPERTIES ; HIGH-COERCIVITY ; PERMANENT-MAGNETS ; COFE2O4 ; COMPOSITE ; SIZE
资助项目National Natural Science Foundation of China[11574321] ; Foundation of Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University
WOS研究方向Engineering ; Materials Science
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000518706900009
资助机构National Natural Science Foundation of China ; Foundation of Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103745]  
专题中国科学院合肥物质科学研究院
通讯作者Zhu, Xuebin; Sun, Yuping
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714
Tang, Xianwu,Zhu, Shunjin,Wei, Renhuai,et al. Exchange coupling and improved properties of the multilayer CoFe2O4/La0.7Sr0.3MnO3 thin films[J]. COMPOSITES PART B-ENGINEERING,2020,186.
APA Tang, Xianwu.,Zhu, Shunjin.,Wei, Renhuai.,Hu, Ling.,Yang, Jie.,...&Sun, Yuping.(2020).Exchange coupling and improved properties of the multilayer CoFe2O4/La0.7Sr0.3MnO3 thin films.COMPOSITES PART B-ENGINEERING,186.
MLA Tang, Xianwu,et al."Exchange coupling and improved properties of the multilayer CoFe2O4/La0.7Sr0.3MnO3 thin films".COMPOSITES PART B-ENGINEERING 186(2020).

入库方式: OAI收割

来源:合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。