REMANENT MAGNETIZATION VECTOR IN MAGNETIC RECORDING MEDIA
| Autor: | Jiro Hokkyo, Akira Kouchiyama |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Materials science
Field (physics) Condensed matter physics Magnitude (mathematics) Function (mathematics) Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Magnetization Magnetic anisotropy Distribution (mathematics) Remanence Electrical and Electronic Engineering Anisotropy Instrumentation |
| Zdroj: | Journal of the Magnetics Society of Japan. 13:S1_893-898 |
| ISSN: | 1880-4004 0285-0192 |
| DOI: | 10.3379/jmsjmag.13.s1_893 |
| Popis: | In order to investigate the vectorial magnetization process in magnetic recording media, a method of measuring the magnitude and the direction of remanent magnetization using a VSM is proposed. The magnitude and direction ψ of the remanent magnetization were measured as a function of the direction of applied field θ in Co-Cr thin-film media and a metal oblique-evaporated medium and metal particulate medium. The film thickness dependence of the relation between ψ and θ for Co-Cr sputtered film was measured and the thickness of the initial layer was estimated. The relation between ψ and θ was calculated by taking the distribution of the anisotropy fields and the easy axes into account. From the measurements and the calculations, it is shown that the relation between ψ and θ is strongly influenced by not only the saturation magnetization and the anisotropy field but also the distribution of the anisotropy fields and the easy axes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|