JPS57117123A - Magnetic recoding body - Google Patents

Magnetic recoding body

Info

Publication number
JPS57117123A
JPS57117123A JP56002701A JP270181A JPS57117123A JP S57117123 A JPS57117123 A JP S57117123A JP 56002701 A JP56002701 A JP 56002701A JP 270181 A JP270181 A JP 270181A JP S57117123 A JPS57117123 A JP S57117123A
Authority
JP
Japan
Prior art keywords
thin film
film layer
nonmagnetic
layer
forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56002701A
Other languages
Japanese (ja)
Inventor
Reiji Nishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56002701A priority Critical patent/JPS57117123A/en
Publication of JPS57117123A publication Critical patent/JPS57117123A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer

Landscapes

  • Thin Magnetic Films (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To achieve a vertical magnetic recording body without decrease in the output of short wavelength and with excellent uniform characteristics and reproducibility, by forming a nonmagnetic metallic thin film layer on a nonmagnetic support base, and forming a Co-Cr alloy ferromagnetic thin film layer after forming a soft magnetic amorphous metallic thin film layer. CONSTITUTION:A nonmagnetic metallic thin film layer made of Al is formed on a nonmagnetic support base made of flexible high polymer film, glass and ceramic. On this layer, an amorphous soft magnetic thin film of Fe-Si-B is provided by a sputtering method in <=3,000Angstrom thickness. A ferromagnetic thin film layer of Co-Cr alloy is formed in about 1,500Angstrom thickness. Thus, the nonmagnetic thin film having good thermal transfer rate as Al can make easily for the next magnetic substance layer with uniform thickness. Thus, the magnetic recording medium with less curl, distortion and uniform characteristics can be achieved.
JP56002701A 1981-01-13 1981-01-13 Magnetic recoding body Pending JPS57117123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002701A JPS57117123A (en) 1981-01-13 1981-01-13 Magnetic recoding body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002701A JPS57117123A (en) 1981-01-13 1981-01-13 Magnetic recoding body

Publications (1)

Publication Number Publication Date
JPS57117123A true JPS57117123A (en) 1982-07-21

Family

ID=11536581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002701A Pending JPS57117123A (en) 1981-01-13 1981-01-13 Magnetic recoding body

Country Status (1)

Country Link
JP (1) JPS57117123A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130408A (en) * 1983-01-17 1984-07-27 Hitachi Ltd Magnetic film
JPS62177721A (en) * 1986-01-31 1987-08-04 Nec Corp Magnetic recording body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130408A (en) * 1983-01-17 1984-07-27 Hitachi Ltd Magnetic film
JPS62177721A (en) * 1986-01-31 1987-08-04 Nec Corp Magnetic recording body

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