Regulation of antiphase boundary density in Fe3O4 thin films and its effect on the electrical and magnetic properties

doi:10.1016/j.actamat.2024.119897

IMR OpenIR

	Regulation of antiphase boundary density in Fe3O4 thin films and its effect on the electrical and magnetic properties
	Gao, Chunyang 1,2; Sun, Ziyi 1,2; Tian, Min 3; Xiong, Ting 3; Jiang, Yixiao 1,2; Yao, Tingting 1,2; Yang, Zhiqing 3; Chen, Chunlin 1,2; Ma, Xiu-Liang 4,5,6; Ye, Hengqiang 3
通讯作者	Yang, Zhiqing(yangzhq@jihualab.ac.cn) ; Chen, Chunlin(clchen@imr.ac.cn)
	2024-06-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	271 页码:11
摘要	Antiphase boundaries (APBs) widely exist in Fe3O4 thin films and affect significantly their electrical and magnetic properties. Here, effects of APBs on the electrical and magnetic properties of Fe3O4 thin films have been quantitatively investigated by a combined study of pulsed laser deposition, transmission electron microscopy (TEM) and first-principles calculations. It was revealed that the substrates affected greatly the density of APBs in Fe3O4 thin films but did not change the atomic structures of APBs. The APB density in the Fe3O4 (111) thin film grown on the MgO (111) substrate was one order of magnitude larger than that on the Al2O3 (0001) substrate. Atomic-scale TEM characterizations revealed that the APBs in the Fe3O4 thin films on both substrates had three types of atomic structures. Due to the higher APB density in the Fe3O4/MgO thin film, the electrical resistivity at 300 K was two orders of magnitude larger than that of the Fe3O4/Al2O3 thin film. Meanwhile, the saturation magnetization and the coercivity of the Fe3O4/MgO thin film were reduced by 86 % and 35 %, respectively. Firstprinciples calculations suggested that the antiferromagnetic coupling was easily formed at all the three types of APBs, which led to the decrease of spin polarization and the increase of electrical resistance of the Fe3O4 thin films.
关键词	Transmission electron microscopy Antiphase boundary Magnetic coupling First-principles calculations
资助者	National Natural Science Foundation of China ; Basic and Applied Basic Research Major Programme of Guangdong Province, China ; Jihua Laboratory
DOI	10.1016/j.actamat.2024.119897
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52125101] ; National Natural Science Foundation of China[51971224] ; National Natural Science Foundation of China[52001309] ; Basic and Applied Basic Research Major Programme of Guangdong Province, China[2021B0301030003] ; Jihua Laboratory[X210141TL210]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001225974400001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186146
专题	中国科学院金属研究所
通讯作者	Yang, Zhiqing; Chen, Chunlin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Ji Hua Lab, Foshan 528200, Peoples R China 4.Songshan Lake Mat Lab, Bay Area Ctr Electron Microscopy, Dongguan 523808, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 6.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Gao, Chunyang,Sun, Ziyi,Tian, Min,et al. Regulation of antiphase boundary density in Fe3O4 thin films and its effect on the electrical and magnetic properties[J]. ACTA MATERIALIA,2024,271:11.
APA	Gao, Chunyang.,Sun, Ziyi.,Tian, Min.,Xiong, Ting.,Jiang, Yixiao.,...&Ye, Hengqiang.(2024).Regulation of antiphase boundary density in Fe3O4 thin films and its effect on the electrical and magnetic properties.ACTA MATERIALIA,271,11.
MLA	Gao, Chunyang,et al."Regulation of antiphase boundary density in Fe3O4 thin films and its effect on the electrical and magnetic properties".ACTA MATERIALIA 271(2024):11.