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FR2550647B1 - MAGNETO-OPTICAL STORAGE MEDIUM - Google Patents

MAGNETO-OPTICAL STORAGE MEDIUM

Info

Publication number
FR2550647B1
FR2550647B1 FR8412529A FR8412529A FR2550647B1 FR 2550647 B1 FR2550647 B1 FR 2550647B1 FR 8412529 A FR8412529 A FR 8412529A FR 8412529 A FR8412529 A FR 8412529A FR 2550647 B1 FR2550647 B1 FR 2550647B1
Authority
FR
France
Prior art keywords
magneto
storage medium
optical storage
optical
medium
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.)
Expired - Fee Related
Application number
FR8412529A
Other languages
French (fr)
Other versions
FR2550647A1 (en
Inventor
Tu Chen
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.)
Xerox Corp
Original Assignee
Xerox Corp
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
Priority claimed from US06/520,922 external-priority patent/US4556291A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of FR2550647A1 publication Critical patent/FR2550647A1/en
Application granted granted Critical
Publication of FR2550647B1 publication Critical patent/FR2550647B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00Thin magnetic films, e.g. of one-domain structure
    • H01F10/08Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00Thin magnetic films, e.g. of one-domain structure
    • H01F10/08Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/14Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00Thin magnetic films, e.g. of one-domain structure
    • H01F10/32Spin-exchange-coupled multilayers, e.g. nanostructured superlattices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
FR8412529A 1983-08-08 1984-08-08 MAGNETO-OPTICAL STORAGE MEDIUM Expired - Fee Related FR2550647B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52092383A 1983-08-08 1983-08-08
US06/520,922 US4556291A (en) 1983-08-08 1983-08-08 Magneto-optic storage media

Publications (2)

Publication Number Publication Date
FR2550647A1 FR2550647A1 (en) 1985-02-15
FR2550647B1 true FR2550647B1 (en) 1990-10-12

Family

ID=27060311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8412529A Expired - Fee Related FR2550647B1 (en) 1983-08-08 1984-08-08 MAGNETO-OPTICAL STORAGE MEDIUM

Country Status (2)

Country Link
DE (1) DE3429258A1 (en)
FR (1) FR2550647B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0670858B2 (en) * 1983-05-25 1994-09-07 ソニー株式会社 Magneto-optical recording medium and its manufacturing method
JP2521908B2 (en) 1985-06-11 1996-08-07 株式会社ニコン Overwritable magneto-optical recording method, magneto-optical recording device and magneto-optical recording medium used therefor, modulation method, modulator and magneto-optical recording medium
JPH07105082B2 (en) * 1985-11-28 1995-11-13 ソニー株式会社 Magneto-optical recording medium
DE3607367C2 (en) * 1986-03-06 1995-06-22 Teves Gmbh Alfred Hydraulic brake system for motor vehicles
JP2547770B2 (en) * 1987-05-25 1996-10-23 株式会社東芝 Method for manufacturing information recording medium
US6251492B1 (en) * 1998-04-10 2001-06-26 Teijin Limited Optical recording medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1547812A (en) * 1966-11-14 1968-11-29 Ampex Magneto-optical modulation reading system
FR1524309A (en) * 1967-03-29 1968-05-10 Centre Nat Rech Scient Binary information memories with thin-film magnetic structures
US4202022A (en) * 1975-10-20 1980-05-06 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same
JPS57133537A (en) * 1981-02-06 1982-08-18 Sharp Corp Magnetic and optical recording and reproducing head

Also Published As

Publication number Publication date
FR2550647A1 (en) 1985-02-15
DE3429258A1 (en) 1985-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse
R1 Appeal
DS Decision of the director general to state about an appeal