KR100519772B1 - 스핀 분극된 전자를 이용한 자성매체 및 자성매체를이용한 정보기록장치 및 기록방법 - Google Patents

스핀 분극된 전자를 이용한 자성매체 및 자성매체를이용한 정보기록장치 및 기록방법 Download PDF

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Publication number
KR100519772B1
KR100519772B1 KR10-2003-0056423A KR20030056423A KR100519772B1 KR 100519772 B1 KR100519772 B1 KR 100519772B1 KR 20030056423 A KR20030056423 A KR 20030056423A KR 100519772 B1 KR100519772 B1 KR 100519772B1
Authority
KR
South Korea
Prior art keywords
layer
electrons
polarization
recording
spin
Prior art date
Application number
KR10-2003-0056423A
Other languages
English (en)
Korean (ko)
Other versions
KR20040034366A (ko
Inventor
김성동
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to US10/682,896 priority Critical patent/US8553517B2/en
Priority to JP2003353048A priority patent/JP4102280B2/ja
Publication of KR20040034366A publication Critical patent/KR20040034366A/ko
Application granted granted Critical
Publication of KR100519772B1 publication Critical patent/KR100519772B1/ko

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording 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
    • G11B11/10—Recording 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
    • G11B11/105—Recording 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
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording 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
    • G11B11/002—Recording 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 perturbation of the physical or electrical structure
    • G11B11/007—Recording 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 perturbation of the physical or electrical structure with reproducing by means directly associated with the tip of a microscopic electrical probe as defined in G11B9/14
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
    • H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
    • H01F10/329—Spin-exchange coupled multilayers wherein the magnetisation of the free layer is switched by a spin-polarised current, e.g. spin torque effect
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Record Carriers (AREA)
KR10-2003-0056423A 2002-10-14 2003-08-14 스핀 분극된 전자를 이용한 자성매체 및 자성매체를이용한 정보기록장치 및 기록방법 KR100519772B1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/682,896 US8553517B2 (en) 2002-10-14 2003-10-14 Magnetic medium using spin-polarized electrons and apparatus and method of recording data on the magnetic medium
JP2003353048A JP4102280B2 (ja) 2002-10-14 2003-10-14 スピン分極電子を用いた磁性媒体及び磁性媒体への情報記録装置及び記録方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020020062481 2002-10-14
KR20020062481 2002-10-14

Publications (2)

Publication Number Publication Date
KR20040034366A KR20040034366A (ko) 2004-04-28
KR100519772B1 true KR100519772B1 (ko) 2005-10-07

Family

ID=35349717

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2003-0056423A KR100519772B1 (ko) 2002-10-14 2003-08-14 스핀 분극된 전자를 이용한 자성매체 및 자성매체를이용한 정보기록장치 및 기록방법

Country Status (2)

Country Link
KR (1) KR100519772B1 (zh)
CN (1) CN100437753C (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200010945A (ko) * 2018-07-23 2020-01-31 한국과학기술연구원 자기기록장치

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101527868B1 (ko) * 2011-04-07 2015-06-10 삼성전자주식회사 광학 요소를 포함하는 정보저장장치

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2743213B2 (ja) * 1990-07-25 1998-04-22 キヤノン株式会社 記録及び／又は再生を行なう装置および方法
JP2744338B2 (ja) * 1990-08-01 1998-04-28 キヤノン株式会社 情報読取り及び／又は入力を行なう装置及び方法
JPH06251435A (ja) * 1993-03-01 1994-09-09 Canon Inc 記録再生装置
US5949600A (en) * 1995-09-06 1999-09-07 Kabushiki Kaisha Toshiba Signal reproduction method and magnetic recording and reproducing apparatus using tunnel current
JP4130488B2 (ja) * 1996-07-24 2008-08-06 株式会社東芝 磁気記録装置
US6162532A (en) * 1998-07-31 2000-12-19 International Business Machines Corporation Magnetic storage medium formed of nanoparticles
DE10029593A1 (de) * 1999-07-03 2001-01-18 Ibm Verfahren und Vorrichtung zur Aufzeichnung, Speicherung und Wiedergabe von Daten
JP2002298325A (ja) * 2001-04-04 2002-10-11 Hitachi Maxell Ltd 磁気記録媒体及びそれを備える磁気記録装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200010945A (ko) * 2018-07-23 2020-01-31 한국과학기술연구원 자기기록장치
KR102073368B1 (ko) * 2018-07-23 2020-02-04 한국과학기술연구원 자기기록장치

Also Published As

Publication number Publication date
CN1697020A (zh) 2005-11-16
CN100437753C (zh) 2008-11-26
KR20040034366A (ko) 2004-04-28

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