MAGNETIC RECORDING MEDIUM AND PROCESS FOR PRODUCING THE SAME

A magnetic recording medium comprises a substrate (1), a ferromagnetic thin film (11) formed on the substrate (1), and a protective film (12) formed on the ferromagnetic thin film (11). The interface between said ferromagnetic thin film (11) and said protective film (12) is free of a reaction deposi...

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Main Authors FUTAMOTO, MASAAKI, ISHIHARA, HEIGO, ASADA, SEIICHI, YOSHIDA, KAZUETSU, HONDA, YUKIO, NISHIMURA, TAKASHI HITACHI DAINI KYOSHINRYO
Format Patent
LanguageEnglish
Published 02.12.1987
Edition4
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A magnetic recording medium comprises a substrate (1), a ferromagnetic thin film (11) formed on the substrate (1), and a protective film (12) formed on the ferromagnetic thin film (11). The interface between said ferromagnetic thin film (11) and said protective film (12) is free of a reaction deposit of elements constituting said ferromagnetic thin film (11) and free from contamination by foreign substances. The ferrogmanetic thin film (11) is made of a Co-based alloy, Fe-based alloy and/or Ni-based alloy. The protective film (12) is made of Ge, and Ge-based alloy or an Ge-based compound.
Bibliography:Application Number: EP19850113015