JPS6464108A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS6464108A
JPS6464108A JP22011787A JP22011787A JPS6464108A JP S6464108 A JPS6464108 A JP S6464108A JP 22011787 A JP22011787 A JP 22011787A JP 22011787 A JP22011787 A JP 22011787A JP S6464108 A JPS6464108 A JP S6464108A
Authority
JP
Japan
Prior art keywords
ferromagnetic material
magnetic
material layers
ferromagnetic
effective
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
JP22011787A
Other languages
Japanese (ja)
Inventor
Reijirou Tsuchiya
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP22011787A priority Critical patent/JPS6464108A/en
Publication of JPS6464108A publication Critical patent/JPS6464108A/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains

Landscapes

  • Magnetic Heads (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To obtain a thin film magnetic head which obviates a decrease in effective magnetic permeability by constituting a part of magnetic poles of laminated magnetic films formed by connecting respective ferromagnetic material films and other ferromagnetic materials with a ferromagnetic material. CONSTITUTION:The ferromagnetic material 4 connecting the ferromagnetic material layers 2, 2 disposed via a nonmagnetic material 3 form a short circuit magnetic path together with the laminated respective ferromagnetic material layers 2. A reflux magnetic flux is thereby formed between the ferromagnetic materials 2 and 2 and a demagnetizing field is hardly generated in the side end part of the ferromagnetic material layers 2 to which the ferromagnetic material 4 sticks. Reflux magnetic domains are no longer formed within the plane of the ferromagnetic material layers 2 and the decrease in the effective magnetic permeability, the reduction in effective track width and the generation of Barkhausen noises by the generation of triangular magnetic domains are eventually suppressed. Since the respective ferromagnetic material layers 2, 2 are bonded by the ferromagnetic material 4, the effect of multi-layered film formation which compares favorably with the effect of a magnetic head optimized in the film thickness of the nonmagnetic intermediate later is obtd. by the conventional technique.
JP22011787A 1987-09-04 1987-09-04 Magnetic head Pending JPS6464108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22011787A JPS6464108A (en) 1987-09-04 1987-09-04 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22011787A JPS6464108A (en) 1987-09-04 1987-09-04 Magnetic head

Publications (1)

Publication Number Publication Date
JPS6464108A true JPS6464108A (en) 1989-03-10

Family

ID=16746183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22011787A Pending JPS6464108A (en) 1987-09-04 1987-09-04 Magnetic head

Country Status (1)

Country Link
JP (1) JPS6464108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427171A3 (en) * 1989-11-07 1991-10-30 International Business Machines Corporation Magnetic thin film structures and methods for forming same
JPH04321910A (en) * 1990-10-25 1992-11-11 Digital Equip Corp <Dec> Transducer whose inductive coupling is improved

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427171A3 (en) * 1989-11-07 1991-10-30 International Business Machines Corporation Magnetic thin film structures and methods for forming same
JPH03254412A (en) * 1989-11-07 1991-11-13 Internatl Business Mach Corp <Ibm> Magnetic thin film structure and manufacture thereof
US5331728A (en) * 1989-11-07 1994-07-26 International Business Machines Corporation Method of fabricating magnetic thin film structures with edge closure layers
JPH04321910A (en) * 1990-10-25 1992-11-11 Digital Equip Corp <Dec> Transducer whose inductive coupling is improved

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