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KR900002248A - 고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드 - Google Patents

고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드 Download PDF

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Publication number
KR900002248A
KR900002248A KR1019890009360A KR890009360A KR900002248A KR 900002248 A KR900002248 A KR 900002248A KR 1019890009360 A KR1019890009360 A KR 1019890009360A KR 890009360 A KR890009360 A KR 890009360A KR 900002248 A KR900002248 A KR 900002248A
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KR
South Korea
Prior art keywords
single crystal
ferroferrite
magnetic head
high content
mnzn
Prior art date
Application number
KR1019890009360A
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English (en)
Other versions
KR0135419B1 (ko
Inventor
토마스 죤슨 마크
프란시스쿠스 마리아 씰레센 요하네스
아드리나우스 피스토리우스 요하네스
Original Assignee
에프. 제이. 스미트
엔. 브이. 필립스 글로아이람펜파브리켄
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.)
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Publication date
Application filed by 에프. 제이. 스미트, 엔. 브이. 필립스 글로아이람펜파브리켄 filed Critical 에프. 제이. 스미트
Publication of KR900002248A publication Critical patent/KR900002248A/ko
Application granted granted Critical
Publication of KR0135419B1 publication Critical patent/KR0135419B1/ko

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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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/26—Complex oxides with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/115—Magnetic layer composition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Heads (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

내용 없음

Description

고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도면은 본 발명에 따른 재료로 구성되는 코어부의 자기 헤드를 도시한다.

Claims (4)

  1. 자기헤드에 사용하기에 적합한 단결정 MnZn-페로페라이트 재료에 있어서, 이 재료는 MnaZnbFecⅡFeⅢ 2O4로써, 0.25〈a〈0.48, 0.50〈b〈0.60, 0.20〈c〈0.15, a+b+c=1인 것을 특징으로 하는 단결정 MnZn-페로페라이트 재료.
  2. 제1항에 있어서, 상기 재료는 MnaZnbFecⅡFeⅢ 2O4로써, 0.30〈a〈0.40, 0.50〈b〈0.55, 0.10〈c〈0.15, a+b+c=1인 것을 특징으로 하는 단결정 MnZn-페로페라이트 재료.
  3. 제1항에 있어서, 상기 재료는 MnaZnbFecⅡFeⅢ 2O4로써, 0.32〈a〈0.40, 0.57〈b〈0.60, 0.03〈c〈0.08, a+b+c=1인 것을 특징으로 하는 단결정 MnZn-페로페라이트 재료.
  4. 적어도 하나의 코어부 및 코일을 구비하는 자기헤드에 있어서, 코어부는 제1항 내지 제3항 중의 어느 항을 따른 단결정 MnZn-페로페라이트로 구성되는 것을 특징으로 하는 자기 헤드.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890009360A 1988-07-04 1989-07-01 고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드 KR0135419B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8801685 1988-07-04
NL8801685 1988-07-04

Publications (2)

Publication Number Publication Date
KR900002248A true KR900002248A (ko) 1990-02-28
KR0135419B1 KR0135419B1 (ko) 1998-04-22

Family

ID=19852564

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890009360A KR0135419B1 (ko) 1988-07-04 1989-07-01 고함량 Zn의 단결정 MnZn-페로페라이트 재료와 이 재료로 제조된 자기 헤드

Country Status (5)

Country Link
US (1) US5049454A (ko)
EP (1) EP0350101B1 (ko)
JP (1) JPH0258203A (ko)
KR (1) KR0135419B1 (ko)
DE (1) DE68906210T2 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541156B1 (en) * 1991-11-04 1997-04-09 Koninklijke Philips Electronics N.V. Magnetic head having a core portion of polycrystalline MnZn ferroferrite
DE69218884T2 (de) * 1991-11-04 1997-10-16 Philips Electronics Nv Magnetkopf mit Kernteil aus polykristallinem MnZn-Ferroferrit
EP0710392B1 (en) * 1993-07-19 2001-11-07 Quantum Corporation Magnetic head with self-regulating wear regions
US5460704A (en) * 1994-09-28 1995-10-24 Motorola, Inc. Method of depositing ferrite film
US6282056B1 (en) 1999-04-08 2001-08-28 Read-Rite Corporation Tapered stitch pole writer for high density magnetic recording
US6937435B2 (en) * 2003-05-16 2005-08-30 Quantum Corporation Tape head with thin support surface and method of manufacture
US7154691B2 (en) * 2003-12-18 2006-12-26 Quantum Corporation Multi-format thinfilm head and associated methods
US7256963B2 (en) * 2004-09-16 2007-08-14 Quantum Corporation Magnetic head with adaptive data island and mini-outrigger and methods of manufacture
US7271983B2 (en) * 2004-09-16 2007-09-18 Quantum Corporation Magnetic head with mini-outriggers and method of manufacture
US20070183091A1 (en) * 2006-02-03 2007-08-09 Saliba George A Read/write head having varying wear regions and methods of manufacture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047240B2 (ja) * 1980-05-16 1985-10-21 ソニー株式会社 フエライト単結晶
NL8005312A (nl) * 1980-09-24 1982-04-16 Philips Nv Werkwijze voor het vervaardigen van ferriet eenkristallen.
NL8200480A (nl) * 1982-02-09 1983-09-01 Philips Nv Magneetkop.
JPS5992999A (ja) * 1982-11-16 1984-05-29 Matsushita Electric Ind Co Ltd 単結晶フエライト
NL8204897A (nl) * 1982-12-20 1984-07-16 Philips Nv Magneetkop met een kern van mn-zn-co-ferroferriet.
JPS6154009A (ja) * 1984-08-24 1986-03-18 Matsushita Electric Ind Co Ltd 磁気ヘツド
JPS62119713A (ja) * 1985-11-20 1987-06-01 Matsushita Electric Ind Co Ltd 磁気ヘツド

Also Published As

Publication number Publication date
KR0135419B1 (ko) 1998-04-22
US5049454A (en) 1991-09-17
EP0350101B1 (en) 1993-04-28
JPH0258203A (ja) 1990-02-27
DE68906210D1 (de) 1993-06-03
DE68906210T2 (de) 1993-11-11
EP0350101A1 (en) 1990-01-10

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