Micromagnetic simulation of Au interlayer in L10-FePt nanocomposite recording medium
| Autor: | Su-Fen Zhao, Sa-Zi Li, Yong Xie, Ziyu Chen |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
010302 applied physics
Nanocomposite Materials science Condensed matter physics Metals and Alloys 02 engineering and technology Coercivity 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Epitaxy 01 natural sciences Phase (matter) 0103 physical sciences Materials Chemistry Perpendicular Texture (crystalline) Physical and Theoretical Chemistry 0210 nano-technology Micromagnetics |
| Zdroj: | Rare Metals. 36:108-112 |
| ISSN: | 1867-7185 1001-0521 |
| DOI: | 10.1007/s12598-014-0261-z |
| Popis: | Owing to the epitaxial inducement of Au atom, Au interlayer was introduced to increase the perpendicular anisotropy and the coercivity in L10-FePt nanocomposite film. Micromagnetics can be used to reveal the relationship between microstructure and magnetic properties of materials, and give the information of the perpendicular anisotropy and coercivity. In this work, the effect of the Au interlayer on annealed [Fe (0.5 nm)/Pt (0.5 nm)/Au (d nm)]10 nanocomposite recording medium by a micromagnetic model was studied. The model contains three phases: hard magnetic phase, soft magnetic phase, and nonmagnetic phase. The calculated result shows that perpendicular orientation degree of the texture and proportion of a hard magnetic phase to the total phase in the annealed film are both enhanced by increasing Au interlayer thickness. This result can be conducive to the improvement of the perpendicular anisotropy and the coercivity of the FePt nanocomposite film in the experiments. |
| Databáze: | OpenAIRE |
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