Interfacial structure and magnetic coupling at Fe3 O4/ FeO (001) and (111) interfaces

doi:10.1103/PhysRevB.109.094405

	Interfacial structure and magnetic coupling at Fe3 O4/ FeO (001) and (111) interfaces
	Sun, Ziyi 1,2; Chen, Shanshan 1,2; Jiang, Yixiao 1,2; Yao, Tingting 1,2; Gao, Chunyang 1,2; Chen, Chunlin 1,2; Ma, Xiu-Liang3,4,5 ; Ye, Hengqiang 6
	2024-03-01
发表期刊	Physical Review B
ISSN	2469-9950
卷号	109 期号:9
摘要	Heterointerfaces between ferromagnetic and antiferromagnetic materials play an important role in the development and applications of magnetic and electronic devices. Here, atomic and electronic structures of two types of Fe3O4/FeO interfaces with different magnetic coupling modes have been investigated by combining advanced transmission electron microscopy and first-principles calculations. It is found that the Fe3O4/FeO (001) and Fe3O4/FeO (111) interfaces can be formed between FeO and Fe3O4 due to different phase transformations. The Fe3O4/FeO (111) interface is generally closer to the steady state. The electronic structure of both types of Fe3O4/FeO interfaces changes significantly, which leads to a metal-insulator transition of the Fe3O4 layer at the interfaces. The energy difference between the ferromagnetic and antiferromagnetic coupling states across the Fe3O4/FeO interfaces is very small, indicating that magnetic flip-flopping easily occurs in the Fe3O4/FeO system. The atomic magnetic moment of the interfacial Fe atoms at the Fe3O4/FeO (001) interface decreases by ∼10% due to the preferentially occupied dxz and dyz orbitals, while that at the Fe3O4/FeO (111) interface remains almost unchanged. These findings suggest that the Fe3O4/FeO interfaces are susceptible to magnetic coupling transition and may find applications in low-power consumption magnetic and electronic devices. © 2024 American Physical Society.
关键词	Antiferromagnetism Atoms Electronic structure Ferromagnetism High resolution transmission electron microscopy Interface states Magnetic moments Metal insulator boundaries Metal insulator transition Semiconductor insulator boundaries Thermoelectric equipment Coupling mode Development and applications Electronic.structure Electronics devices Ferromagnetic and anti-ferromagnetic First principle calculations Hetero-interfaces Interfacial structures Phases transformation Steady state
DOI	10.1103/PhysRevB.109.094405
收录类别	EI
语种	英语
出版者	American Physical Society
EI入藏号	20241115720734
EI主题词	Magnetite
EI分类号	615.4 Thermoelectric Energy ; 701.2 Magnetism: Basic Concepts and Phenomena ; 708.4 Magnetic Materials ; 714.2 Semiconductor Devices and Integrated Circuits ; 741.3 Optical Devices and Systems ; 931 Classical Physics ; Quantum Theory ; Relativity ; 931.3 Atomic and Molecular Physics ; 932 High Energy Physics ; Nuclear Physics ; Plasma Physics
原始文献类型	Journal article (JA)
EISSN	2469-9969
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/170255
专题	材料科学与工程学院_特聘教授组
通讯作者	Jiang, Yixiao; Yao, Tingting
作者单位	1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang; 110016, China; 2.School of Materials Science and Engineering, University of Science and Technology of China, Shenyang; 110016, China; 3.Bay Area Center for Electron Microscopy, Songshan Lake Materials Laboratory, Dongguan; 523808, China; 4.Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; 5.Lanzhou University of Technology, School of Materials Science and Engineering, Lanzhou; 730050, China; 6.Ji Hua Laboratory, Foshan; 528200, China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Sun, Ziyi,Chen, Shanshan,Jiang, Yixiao,et al. Interfacial structure and magnetic coupling at Fe3 O4/ FeO (001) and (111) interfaces[J]. Physical Review B,2024,109(9).
APA	Sun, Ziyi.,Chen, Shanshan.,Jiang, Yixiao.,Yao, Tingting.,Gao, Chunyang.,...&Ye, Hengqiang.(2024).Interfacial structure and magnetic coupling at Fe3 O4/ FeO (001) and (111) interfaces.Physical Review B,109(9).
MLA	Sun, Ziyi,et al."Interfacial structure and magnetic coupling at Fe3 O4/ FeO (001) and (111) interfaces".Physical Review B 109.9(2024).