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JPS57155707A - Amorphous alloy thin film magnetic core and its manufacture - Google Patents

Amorphous alloy thin film magnetic core and its manufacture

Info

Publication number
JPS57155707A
JPS57155707A JP4097681A JP4097681A JPS57155707A JP S57155707 A JPS57155707 A JP S57155707A JP 4097681 A JP4097681 A JP 4097681A JP 4097681 A JP4097681 A JP 4097681A JP S57155707 A JPS57155707 A JP S57155707A
Authority
JP
Japan
Prior art keywords
thin film
magnetic
amorphous alloy
alloy thin
magnetic field
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
JP4097681A
Other languages
Japanese (ja)
Inventor
Nobumasa Kaminaka
Harufumi Sakino
Eiichi Hirota
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4097681A priority Critical patent/JPS57155707A/en
Publication of JPS57155707A publication Critical patent/JPS57155707A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/22—Heat treatment; Thermal decomposition; Chemical vapour deposition

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To increase a magnetic permeability in a high frequency region and improve a character as a magnetic head by a method wherein one-axis magnetic anisotropy having Ku value less than a specified value is provided in the interior of the thin film in an amorphous alloy thin film magnetic core of 3d transistion metal and semimetal system. CONSTITUTION:Amorphous alloy thin film is formed by using the alloy of 3d transition metal and semimetal system, for example, the alloy of Co-Fe-B system for target material and a heat treatment of 300 deg.C, 2hr is provided in a rotary magnetic field or is held 300 deg.C, 2hr while applying AC magnetic field along the thickness direction of the thin film, thereafter it is cooled quickly upto the room temperature while applying the AC magnetic field. According to such the heat treatment, one-axis magnetic anisotropy having a value within the range of Ku= 5X10<2>erg/cc is provided for the interior of the thin film face. A recording property for the magnetic head or the like can be improved, which has a very high magnetic permeability in the high frequency region and a manufacturing process also be simplified more.
JP4097681A 1981-03-20 1981-03-20 Amorphous alloy thin film magnetic core and its manufacture Pending JPS57155707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4097681A JPS57155707A (en) 1981-03-20 1981-03-20 Amorphous alloy thin film magnetic core and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4097681A JPS57155707A (en) 1981-03-20 1981-03-20 Amorphous alloy thin film magnetic core and its manufacture

Publications (1)

Publication Number Publication Date
JPS57155707A true JPS57155707A (en) 1982-09-25

Family

ID=12595467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4097681A Pending JPS57155707A (en) 1981-03-20 1981-03-20 Amorphous alloy thin film magnetic core and its manufacture

Country Status (1)

Country Link
JP (1) JPS57155707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426326A2 (en) * 1989-10-20 1991-05-08 Seagate Technology International Magnetic read/write head and method of making such a head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426326A2 (en) * 1989-10-20 1991-05-08 Seagate Technology International Magnetic read/write head and method of making such a head
US5372698A (en) * 1989-10-20 1994-12-13 Seagate Technology, Inc. High magnetic moment thin film head core

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