AU2001276540A1 - Magnetic element with switchable domain structure - Google Patents

Magnetic element with switchable domain structure

Info

Publication number
AU2001276540A1
AU2001276540A1 AU2001276540A AU7654001A AU2001276540A1 AU 2001276540 A1 AU2001276540 A1 AU 2001276540A1 AU 2001276540 A AU2001276540 A AU 2001276540A AU 7654001 A AU7654001 A AU 7654001A AU 2001276540 A1 AU2001276540 A1 AU 2001276540A1
Authority
AU
Australia
Prior art keywords
magnetic element
domain structure
switchable domain
switchable
magnetic
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.)
Abandoned
Application number
AU2001276540A
Inventor
James Anthony Charles Bland
Mathias Klaus
Luis Lopez Dias
Bengt Johan Rothman
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.)
Cambridge University Technical Services Ltd CUTS
Original Assignee
Cambridge University Technical Services Ltd CUTS
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 Cambridge University Technical Services Ltd CUTS filed Critical Cambridge University Technical Services Ltd CUTS
Publication of AU2001276540A1 publication Critical patent/AU2001276540A1/en
Abandoned legal-status Critical Current

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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4907—Details for scanning
    • G11B5/4915—Structure of specially adapted heads
    • G11B5/4923—Structure of specially adapted heads in which zones of the transducing part are being physically controllable
    • G11B5/493—Control of magnetic properties, e.g. saturation, anisotropy
    • G11B5/4938—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films
    • G11B5/4946—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films for formation or displacement of magnetic domains, e.g. walls, bubbles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C21/00—Digital stores in which the information circulates continuously
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
    • G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
    • G11C19/0808—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure using magnetic domain propagation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hall/Mr Elements (AREA)
  • Semiconductor Memories (AREA)
AU2001276540A 2000-08-08 2001-08-07 Magnetic element with switchable domain structure Abandoned AU2001276540A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0019506.5A GB0019506D0 (en) 2000-08-08 2000-08-08 Magnetic element with switchable domain structure
GB0019506 2000-08-08
PCT/GB2001/003557 WO2002013208A1 (en) 2000-08-08 2001-08-07 Magnetic element with switchable domain structure

Publications (1)

Publication Number Publication Date
AU2001276540A1 true AU2001276540A1 (en) 2002-02-18

Family

ID=9897243

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001276540A Abandoned AU2001276540A1 (en) 2000-08-08 2001-08-07 Magnetic element with switchable domain structure

Country Status (5)

Country Link
US (1) US7102477B2 (en)
EP (1) EP1307891A1 (en)
AU (1) AU2001276540A1 (en)
GB (1) GB0019506D0 (en)
WO (1) WO2002013208A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0019506D0 (en) 2000-08-08 2000-09-27 Univ Cambridge Tech Magnetic element with switchable domain structure
GB0028092D0 (en) 2000-11-17 2001-01-03 Eastgate Invest Ltd Magnetic logic elements
GB2403080B (en) * 2000-11-17 2005-07-13 Eastgate Invest Ltd Data storage device
GB0207160D0 (en) * 2002-03-27 2002-05-08 Eastgate Invest Ltd Data storage device
GB2415304B (en) * 2003-02-10 2006-11-15 Massachusetts Inst Technology Magnetic memory elements using 360 degree walls
JP4945721B2 (en) * 2004-10-27 2012-06-06 国立大学法人東北大学 Magnetoresistive element and magnetic memory device
US7242604B2 (en) * 2005-01-13 2007-07-10 International Business Machines Corporation Switchable element
US8368421B2 (en) * 2006-08-10 2013-02-05 The Trustees Of Dartmouth College Micromagnetic elements, logic devices and related methods
US7492622B2 (en) 2007-01-12 2009-02-17 International Business Machines Corporation Sequence of current pulses for depinning magnetic domain walls
EP2306540B1 (en) * 2008-06-24 2014-08-27 Fuji Electric Co., Ltd. Spin valve recording element and storage device
KR101461262B1 (en) * 2008-06-25 2014-11-12 후지 덴키 가부시키가이샤 Magnetic memory element and its driving method and nonvolatile memory device
GB0816640D0 (en) * 2008-09-12 2008-10-22 Univ Durham Data storage device
US8013696B2 (en) * 2008-10-14 2011-09-06 Nexteer (Beijing) Technology Co., Ltd. Magnetic apparatus and method of manufacturing the magnetic apparatus
US20110199286A1 (en) * 2010-02-13 2011-08-18 Robin Dziama Spherical Electronic LCD Display
US8923039B2 (en) * 2012-11-06 2014-12-30 International Business Machines Corporation Multiple bit nonvolatile memory based on current induced domain wall motion in a nanowire magnetic tunnel junction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019796A (en) * 1989-12-22 1991-05-28 Eastman Kodak Company Bar magnet for construction of a magnetic roller core
US5576679A (en) * 1994-10-25 1996-11-19 Shin-Etsu Chemical Co., Ltd. Cylindrical permanent magnet unit suitable for gyrotron
US6940379B2 (en) * 2000-04-11 2005-09-06 Stereotaxis, Inc. Magnets with varying magnetization direction and method of making such magnets
GB0019506D0 (en) 2000-08-08 2000-09-27 Univ Cambridge Tech Magnetic element with switchable domain structure

Also Published As

Publication number Publication date
US7102477B2 (en) 2006-09-05
US20040021539A1 (en) 2004-02-05
GB0019506D0 (en) 2000-09-27
WO2002013208A1 (en) 2002-02-14
EP1307891A1 (en) 2003-05-07

Similar Documents

Publication Publication Date Title
AU2001235867A1 (en) Structure with switchable magnetic properties
AU2001249381A1 (en) Magnetic element with an improved magnetoresistance ratio
AU2001289895A1 (en) Magnet coil
AU2001293299A1 (en) Planar inductive element
AU2000228235A1 (en) Resonance shifting
AU2001261312A1 (en) Resonance free burner
AU2001269525A1 (en) Sports-wear with cups
AU2001276540A1 (en) Magnetic element with switchable domain structure
AU2001243267A1 (en) New pepper variety
AU2001286308A1 (en) D-subconnector provided with ferrite cores
AU2001285450A1 (en) Low capacitance receiver coil
AU6020901A (en) Insulating element
AU3951299A (en) Ultrafast magnetization reversal
AU2001244361A1 (en) Magnetic filter
AU2002217962A1 (en) Death domain proteins
AU2001293749A1 (en) Magnetic component
AU2001296210A1 (en) Magnetic engine
AU2002212379A1 (en) Core structure
GB0009816D0 (en) Magnet with improved temperature stability
AU2002216432A1 (en) Magnetic oil fence
AUPQ853600A0 (en) Clips
AU2001270821A1 (en) Switchable waveguide device
AU3816400A (en) Structure
AU2001276979A1 (en) Magnetoresistive structure
AU2000245353A1 (en) Fish-hook