Microstructure and physical properties of epsilon-Fe2O3 thin films fabricated by pulsed laser deposition

doi:10.1016/j.micron.2022.103359

IMR OpenIR

	Microstructure and physical properties of epsilon-Fe2O3 thin films fabricated by pulsed laser deposition
	Chen, Shanshan 1,2; Jiang, Yixiao 1,2; Yao, Tingting 1,2; Tao, Ang 1,2; Yan, Xuexi 1,2; Liu, Fang 1; Chen, Chunlin 1,2; Ma, Xiuliang 1,3; Ye, Hengqiang 2
通讯作者	Chen, Chunlin(clchen@imr.ac.cn)
	2022-12-01
发表期刊	MICRON
ISSN	0968-4328
卷号	163 页码:6
摘要	epsilon-Fe2O3 has attracted intense interest in the field of magnetoelectric materials due to its promising physical properties. The epitaxial growth of epsilon-Fe2O3 thin films is challenging since it is a metastable phase of iron oxide. In this study, epsilon-Fe2O3 (001) thin films are epitaxially grown on SrTiO3 (111) substrates by pulsed laser deposition (PLD). The crystal structure, valence state, and microstructure of the epsilon-Fe2O3 thin films are investigated by X-ray diffraction, X-ray photoelectron spectroscopy, and transmission electron microscopy. It is revealed that the oxygen pressure, deposition and annealing temperatures, and laser beam energy affect significantly the epitaxial growth of epsilon-Fe2O3 thin films. The orientation relationship between films and substrates is epsilon-Fe2O3 (001)[010] // SrTiO3 (111)[(1) over bar 10]. The magnetic hysteresis loops tested by a superconducting quantum interference device and UV-Vis reflection spectra suggest that the epsilon-Fe2O3 thin film with thickness of similar to 20 nm has a strong magnetic anisotropy, a coercivity of 600 Oe, and an indirect band gap of 3.26 eV.
关键词	epsilon-Fe2O3 Thin film Pulsed laser deposition Transmission electron microscopy Physical properties
资助者	National Natural Science Founda- tion of China ; Key Research Program of Frontier Sciences, CAS ; CAS Interdisciplinary Innovation Team ; Basic and Applied Basic Research Major Programme of Guangdong Province, China
DOI	10.1016/j.micron.2022.103359
收录类别	SCI
语种	英语
资助项目	National Natural Science Founda- tion of China ; Key Research Program of Frontier Sciences, CAS ; CAS Interdisciplinary Innovation Team ; Basic and Applied Basic Research Major Programme of Guangdong Province, China ; [52125101] ; [51971224] ; [51801215] ; [QYZDY-SSW-JSC027] ; [292020000008] ; [2021B0301030003] ; [X210141TL210]
WOS研究方向	Microscopy
WOS类目	Microscopy
WOS记录号	WOS:000872930400001
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/321006/176398
专题	中国科学院金属研究所
通讯作者	Chen, Chunlin
作者单位	1.Univ Sci & Technol China, Inst Met Res, Chinese Acad Sci, Sch Mat Sci & Engn,Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Ji Hua Lab, Foshan 528200, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shanshan,Jiang, Yixiao,Yao, Tingting,et al. Microstructure and physical properties of epsilon-Fe2O3 thin films fabricated by pulsed laser deposition[J]. MICRON,2022,163:6.
APA	Chen, Shanshan.,Jiang, Yixiao.,Yao, Tingting.,Tao, Ang.,Yan, Xuexi.,...&Ye, Hengqiang.(2022).Microstructure and physical properties of epsilon-Fe2O3 thin films fabricated by pulsed laser deposition.MICRON,163,6.
MLA	Chen, Shanshan,et al."Microstructure and physical properties of epsilon-Fe2O3 thin films fabricated by pulsed laser deposition".MICRON 163(2022):6.