GB1435452A - Magnetic bubble domain composite with hard bubble suppression - Google Patents

Magnetic bubble domain composite with hard bubble suppression

Info

Publication number
GB1435452A
GB1435452A GB2236574A GB2236574A GB1435452A GB 1435452 A GB1435452 A GB 1435452A GB 2236574 A GB2236574 A GB 2236574A GB 2236574 A GB2236574 A GB 2236574A GB 1435452 A GB1435452 A GB 1435452A
Authority
GB
United Kingdom
Prior art keywords
layer
bubble
hard
suppression
bubble domain
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
Application number
GB2236574A
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.)
Boeing North American Inc
Original Assignee
Rockwell International 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
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Publication of GB1435452A publication Critical patent/GB1435452A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H01F10/3209—Exchange coupling of garnet multilayers
    • 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
    • H01F10/3286—Spin-exchange coupled multilayers having at least one layer with perpendicular magnetic anisotropy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)

Abstract

1435452 Magnetic storage devices ROCKWELL INTERNATIONAL CORP 20 May 1974 [2 July 1973] 22365/74 Heading H3B In order to suppress the formation of "hard" bubble domains in a layer 13 of bubble domain material supported on a substrate 11, a suppression layer 12 is provided contiguous to the layer 13, this suppression layer having sufficient anisotropy to establish a net moment of magnetization substantially parallel to the layer 13. A "hard" bubble domain is one that has a low mobility, propagates at an angle to the applied bias field gradients, and can exist over a range of bias field values of up to 30 Oersted. Layer 13 may be sandwiched between layers 11 and 12, Fig. 4 (not shown).
GB2236574A 1973-07-02 1974-05-20 Magnetic bubble domain composite with hard bubble suppression Expired GB1435452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37599973A 1973-07-02 1973-07-02

Publications (1)

Publication Number Publication Date
GB1435452A true GB1435452A (en) 1976-05-12

Family

ID=23483271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2236574A Expired GB1435452A (en) 1973-07-02 1974-05-20 Magnetic bubble domain composite with hard bubble suppression

Country Status (6)

Country Link
JP (1) JPS5444424B2 (en)
CA (1) CA1028055A (en)
DE (1) DE2431419C3 (en)
FR (1) FR2241408A1 (en)
GB (1) GB1435452A (en)
IT (1) IT1013344B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5252336A (en) * 1975-10-24 1977-04-27 Agency Of Ind Science & Technol Shiftig system of magnetic blocks
NL8004201A (en) * 1980-07-22 1982-02-16 Philips Nv Apparatus for the advancement of magnetic domains.

Also Published As

Publication number Publication date
DE2431419C3 (en) 1978-04-27
JPS5054254A (en) 1975-05-13
JPS5444424B2 (en) 1979-12-26
FR2241408A1 (en) 1975-03-21
IT1013344B (en) 1977-03-30
DE2431419B2 (en) 1977-09-01
CA1028055A (en) 1978-03-14
DE2431419A1 (en) 1975-01-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee