SG81319A1 - High coercivity multifilm hard magnetic layer for magnetically stabilizing a spin valve sensor - Google Patents

High coercivity multifilm hard magnetic layer for magnetically stabilizing a spin valve sensor

Info

Publication number
SG81319A1
SG81319A1 SG9905113A SG1999005113A SG81319A1 SG 81319 A1 SG81319 A1 SG 81319A1 SG 9905113 A SG9905113 A SG 9905113A SG 1999005113 A SG1999005113 A SG 1999005113A SG 81319 A1 SG81319 A1 SG 81319A1
Authority
SG
Singapore
Prior art keywords
multifilm
magnetic layer
hard magnetic
spin valve
valve sensor
Prior art date
Application number
SG9905113A
Inventor
Pinarbasi Mustafa
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of SG81319A1 publication Critical patent/SG81319A1/en

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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/733—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the addition of non-magnetic particles
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Thin Magnetic Films (AREA)
  • Hall/Mr Elements (AREA)
SG9905113A 1998-10-21 1999-10-14 High coercivity multifilm hard magnetic layer for magnetically stabilizing a spin valve sensor SG81319A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17639698A 1998-10-21 1998-10-21

Publications (1)

Publication Number Publication Date
SG81319A1 true SG81319A1 (en) 2001-06-19

Family

ID=22644189

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9905113A SG81319A1 (en) 1998-10-21 1999-10-14 High coercivity multifilm hard magnetic layer for magnetically stabilizing a spin valve sensor

Country Status (5)

Country Link
JP (1) JP3266590B2 (en)
KR (1) KR100338441B1 (en)
CN (1) CN1129892C (en)
MY (1) MY137115A (en)
SG (1) SG81319A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411476B1 (en) * 1999-10-28 2002-06-25 International Business Machines Corporation Trilayer seed layer structure for spin valve sensor
JP2002319111A (en) * 2001-02-15 2002-10-31 Fujitsu Ltd Magnetic head of magnetoresistance type
US6636400B2 (en) 2001-09-18 2003-10-21 International Business Machines Corporation Magnetoresistive head having improved hard biasing characteristics through the use of a multi-layered seed layer including an oxidized tantalum layer and a chromium layer
JP4146818B2 (en) 2004-04-21 2008-09-10 Ｔｄｋ株式会社 Thin film magnetic head, head gimbal assembly, and hard disk drive
US7428129B2 (en) 2004-06-30 2008-09-23 Hitachi Global Storage Technologies Amsterdam Methods and apparatus for improved hard magnet properties in magnetoresistive read heads using a multi-layered seed layer structure
US7663847B2 (en) * 2005-08-09 2010-02-16 Hitachi Global Storage Technologies Netherlands B.V. Magnetoresistive sensor having an anisotropic hard bias without a buffer layer
CN102074329B (en) * 2009-11-23 2012-04-18 中国科学院物理研究所 Magnetic multilayer film as well as magnetic logic element and magnetic random access memory thereof
CN102760449B (en) * 2011-04-29 2016-06-08 新科实业有限公司 The method of test magnetic head resistance to elevated temperatures and device thereof
US9893119B2 (en) * 2016-03-15 2018-02-13 Texas Instruments Incorporated Integrated circuit with hall effect and anisotropic magnetoresistive (AMR) sensors
CN105911103A (en) * 2016-04-13 2016-08-31 南京工业大学 Pinning spin valve structure, bio-magnetic sensor, and bio-molecular detection method
KR102144089B1 (en) 2019-01-31 2020-08-12 광주과학기술원 Magnetoresistive Sensor and the Manufacturing Method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5739988A (en) * 1996-09-18 1998-04-14 International Business Machines Corporation Spin valve sensor with enhanced magnetoresistance
US5768071A (en) * 1997-06-19 1998-06-16 International Business Machines Corporation Spin valve sensor with improved magnetic stability of the pinned layer
US5793207A (en) * 1996-10-09 1998-08-11 International Business Machines Corporation Disk drive with a thermal asperity reduction circuitry using a spin valve sensor
US5796561A (en) * 1996-11-27 1998-08-18 International Business Machines Corporation Self-biased spin valve sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5739988A (en) * 1996-09-18 1998-04-14 International Business Machines Corporation Spin valve sensor with enhanced magnetoresistance
US5793207A (en) * 1996-10-09 1998-08-11 International Business Machines Corporation Disk drive with a thermal asperity reduction circuitry using a spin valve sensor
US5796561A (en) * 1996-11-27 1998-08-18 International Business Machines Corporation Self-biased spin valve sensor
US5768071A (en) * 1997-06-19 1998-06-16 International Business Machines Corporation Spin valve sensor with improved magnetic stability of the pinned layer

Also Published As

Publication number Publication date
JP3266590B2 (en) 2002-03-18
KR100338441B1 (en) 2002-05-27
CN1129892C (en) 2003-12-03
KR20000028687A (en) 2000-05-25
MY137115A (en) 2008-12-31
JP2000132817A (en) 2000-05-12
CN1251933A (en) 2000-05-03

Similar Documents

Publication Publication Date Title
AU5421699A (en) Device comprising a first and a second ferromagnetic layer separated by a non-magnetic spacer layer
GB2355018B (en) Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer
HK1030039A1 (en) Solenoid valve with permanent magnet
SG77708A1 (en) Low moment/high coercivity pinned layer for magnetic tunnel juction sensors
EP1061592A3 (en) Magneto-resistance effect element, and its use as memory element
SG65776A1 (en) Spin valve read head with low moment high coercivity pinning layer
EP0694788A3 (en) Spin valve magnetoresistive sensor, process for making the sensor, and magnetic recording system using the sensor
EP1212760A4 (en) Superconducting magnetic coil
EP0687917A3 (en) Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor
SG44674A1 (en) Magnetoresistive sensor with flux keepered spin valve configuration
SG118167A1 (en) Perpendicular magnetic recording medium and a method for manufacturing the same
GB2390168B (en) GMR magnetic detecting element and a method of manufacturing the detecting element
AU2001249381A1 (en) Magnetic element with an improved magnetoresistance ratio
SG112849A1 (en) Perpenducular magnetic recording medium and a method for manufacturing same
SG118168A1 (en) Perpendicular magnetic recording medium and a method for manufacturing the same
SG81319A1 (en) High coercivity multifilm hard magnetic layer for magnetically stabilizing a spin valve sensor
AU2001272657A1 (en) Antiferromagnetically coupled magnetic recording media
GB2343199B (en) Multiple-coil electromagnet for magnetically orienting thin films
TW506500U (en) Selector valve with magnetic sensor
SG115415A1 (en) Magnetic recording medium and manufacturing method therefor
SG100643A1 (en) Perpendicular magnetic recording medium and a manufacturing method for the same
SG96269A1 (en) Perpendicular magnetic recording disk
SG65742A1 (en) Magnetic head with spin valve effect magnetoresistive element and its manufacturing method
WO2002007153A3 (en) Domain control in shields of a magnetic transducer
SG123545A1 (en) Magnetic recording medium and a method for manufacturing the same