Ba-Ferrite Magneto-optical Recording Media
| Autor: | Yasuo Sawada, Yujiro Kaneko, Isao Miyamoto, Fumiya Ohmi, Atsuyuki Watada |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Materials science
General Engineering Analytical chemistry General Physics and Astronomy Reflective layer Magneto optical Metal symbols.namesake Nuclear magnetic resonance visual_art Faraday effect symbols visual_art.visual_art_medium Magnetic layer Curie temperature Ferrite (magnet) Recording media |
| Zdroj: | Japanese Journal of Applied Physics. 26:23 |
| ISSN: | 1347-4065 0021-4922 |
| DOI: | 10.7567/jjaps.26s4.23 |
| Popis: | We have studied on the application of Ba-ferrite(BaFe12O19) to magneto-optical recording. It was found that CoTi substituted Ba-ferrite(BaCoxTixFe12-2xO19) films on GGG single crystals had Faraday rotation of 0.9deg/ µ m(λ=780nm) and Curie temperature of 320°C at X=0.9. And CoTi substituted Ba-ferrite films with the perpendicular magnetic anisotropy were obtained on glass substrate by using (111) orientated NiZn-ferrite(NixZn1-xFe2O4) films for under layer. From these results, Ba-ferrite magneto-optical recording medium which constitution is glass substrate, NiZn-ferrite under layer, CoTi substituted Ba-ferrite magnetic layer and stripe-shaped metal reflective layer for the guide tracks, is proposed from the optimization of each layer. |
| Databáze: | OpenAIRE |
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