Magnetisches Aufzeichnungsmedium

In a magnetic recording medium comprising a thin film type ferromagnetic metal layer formed by physical vapour deposition on a non-magnetic substrate (4), the ferromagnetic metal layer comprises columnar crystals (10) inclined relative to the substrate (4), each of the columnar crystals being formed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MIYAIRI, HIDESUKE, MIYAGI, JP, YAZAWA, KENJI, MIYAGI, JP, MATSUYAMA, HIDEAKI, KANAGAWA, JP, OZAWA, KAZUNORI, MIYAGI, JP, YOKOYAMA, NORIO, MIYAGI, JP, TAMAGAWA, NOBUAKI, YOKOHAMA, KANAGAWA, JP
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	In a magnetic recording medium comprising a thin film type ferromagnetic metal layer formed by physical vapour deposition on a non-magnetic substrate (4), the ferromagnetic metal layer comprises columnar crystals (10) inclined relative to the substrate (4), each of the columnar crystals being formed of ferromagnetic metal particles (11) and oxide particles (12) of the ferromagnetic metal randomly distributed in the columnar crystal. The recording medium has improved signal to noise ratio.