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Microstructure and magnetic properties of (0 0 1)-oriented L10 FePt films: Role of Ag underlayer and Fe/Pt ratio |
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| Authors: | H. Wang J. Zhang Q. Mo F.J. Yang H.B. Wang X.S. Miao |
| Affiliation: | 1. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, PR China;2. College of Chemistry & Chemical Engineering, Linyi University, Linyi 276000, PR China;3. College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China |
| Abstract: | FePt multilayer films were deposited on Si(1 0 0) substrate with thermally grown SiO2 film and sputtered Ag underlayer at room temperature by dc magnetron sputtering and subsequently annealing in vacuum. Experimental results suggest that proper thickness of Ag underlayer and slightly rich of Fe content can effectively induce the (0 0 1) texture of FePt films. A Fe57.4Pt42.6 thin film on the 8 nm Ag underlayer exhibits a large perpendicular coercivity of 7.6 kOe with magnetic remanence close to 1. |
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