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

doi:10.1016/j.micron.2022.103359

	Microstructure and physical properties of Ε-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, Xiuliang1,3 ; Ye, Hengqiang 2
	2022-12
发表期刊	Micron
ISSN	0968-4328
卷号	163
摘要	Ε-Fe2O3 has attracted intense interest in the field of magnetoelectric materials due to its promising physical properties. The epitaxial growth of Ε-Fe2O3 thin films is challenging since it is a metastable phase of iron oxide. In this study, Ε-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 Ε-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 Ε-Fe2O3 thin films. The orientation relationship between films and substrates is Ε-Fe2O3 (001)[010] // SrTiO3 (111)[1¯10]. The magnetic hysteresis loops tested by a superconducting quantum interference device and UV–Vis reflection spectra suggest that the Ε-Fe2O3 thin film with thickness of ∼ 20 nm has a strong magnetic anisotropy, a coercivity of 600 Oe, and an indirect band gap of 3.26 eV. © 2022 Elsevier Ltd
关键词	Crystal structure Energy gap Epitaxial growth Hematite High resolution transmission electron microscopy Laser beams Magnetic anisotropy Magnetization Microstructure Oxide films Pulsed lasers SQUIDs Strontium titanates Thin films X ray photoelectron spectroscopy Crystals structures Epitaxially grown Magnetoelectric materials Metastable phase Oxygen deposition Pulsed-laser deposition Thin-films Valence state X- ray diffractions Ε-fe2O3
DOI	10.1016/j.micron.2022.103359
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Microscopy
WOS类目	Microscopy
WOS记录号	WOS:000872930400001
出版者	Elsevier Ltd
EI入藏号	20224112854237
EI主题词	Pulsed laser deposition
EI分类号	482.2 Minerals ; 701.2 Magnetism: Basic Concepts and Phenomena ; 741.3 Optical Devices and Systems ; 744.1 Lasers, General ; 744.8 Laser Beam Interactions ; 744.9 Laser Applications ; 802.3 Chemical Operations ; 804 Chemical Products Generally ; 931.2 Physical Properties of Gases, Liquids and Solids ; 933.1.1 Crystal Lattice ; 933.1.2 Crystal Growth ; 951 Materials Science
来源库	WOS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/160238
专题	材料科学与工程学院_特聘教授组
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 Ε-Fe2O3 thin films fabricated by pulsed laser deposition[J]. Micron,2022,163.
APA	Chen, Shanshan.,Jiang, Yixiao.,Yao, Tingting.,Tao, Ang.,Yan, Xuexi.,...&Ye, Hengqiang.(2022).Microstructure and physical properties of Ε-Fe2O3 thin films fabricated by pulsed laser deposition.Micron,163.
MLA	Chen, Shanshan,et al."Microstructure and physical properties of Ε-Fe2O3 thin films fabricated by pulsed laser deposition".Micron 163(2022).