Institutional Repository of Coll Mat Sci & Engn
Microstructure and physical properties of Ε-Fe2O3 thin films fabricated by pulsed laser deposition | |
Chen, Shanshan1,2; Jiang, Yixiao1,2; Yao, Tingting1,2; Tao, Ang1,2; Yan, Xuexi1,2; Liu, Fang1; Chen, Chunlin1,2; Ma, Xiuliang1,3; Ye, Hengqiang2 | |
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 | |
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). |
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