JPS6413286A - Bloch line memory and it's information transfer method - Google Patents
Bloch line memory and it's information transfer methodInfo
- Publication number
- JPS6413286A JPS6413286A JP62166987A JP16698787A JPS6413286A JP S6413286 A JPS6413286 A JP S6413286A JP 62166987 A JP62166987 A JP 62166987A JP 16698787 A JP16698787 A JP 16698787A JP S6413286 A JPS6413286 A JP S6413286A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- bloch line
- wall
- magnetic wall
- bloch
- 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.)
- Pending
Links
Classifications
-
- 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
- G11C19/0816—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 using a rotating or alternating coplanar magnetic field
-
- 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
- G11C19/0858—Generating, replicating or annihilating magnetic domains (also comprising different types of magnetic domains, e.g. "Hard Bubbles")
Abstract
PURPOSE:To realize stable and certain Bloch line transfer by forming a potential for controlling the position of a Bloch line whose extremal value moves in one direction along a magnetic wall, and quasistatically transferring the Bloch line. CONSTITUTION:A Bloch line memory consists of a soft magnetic substance layer 12 formed on a non-magnetic garnet substrate 2, a magnetic garnet thin film 4, a strip state magnetic domain 6 and a film 4 in a pattern state through a spacer layer 14 and the magnetic wall 8. When a magnetic field rotating in the direction of a clock in the magnetic thin film 4 is impressed, the maximum or the minimum position of the (x) direction component Hx of the field generating in the L part of the magnetic wall 8 is moved to the left direction based on magnetization generated in the soft magnetic substance layer 12. As a set of Bloch line possess the magnetization of an (x) direction in the middle, it is stabilized at the maximum or the minimum position and successively moved to the left direction and the Bloch line is transferred. At the part L' of the magnetic wall 8, the movement of the extremal value position of the Hx directs the right, and finally the Bloch line is transferred to the opposite direction of a clock shown by an arrow T extending the whole magnetic wall 8.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166987A JPS6413286A (en) | 1987-07-06 | 1987-07-06 | Bloch line memory and it's information transfer method |
GB8815505A GB2208143B (en) | 1987-07-06 | 1988-06-29 | Method of transferring bloch lines |
FR8809082A FR2618013A1 (en) | 1987-07-06 | 1988-07-05 | METHOD FOR TRANSFERRING BLOCH LINES AND BLOCH LINE MEMORY |
DE3822737A DE3822737A1 (en) | 1987-07-06 | 1988-07-05 | Method of offsetting Bloch lines and Bloch line memory |
US07/734,098 US5172336A (en) | 1987-07-06 | 1991-07-23 | Method of transferring Bloch lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166987A JPS6413286A (en) | 1987-07-06 | 1987-07-06 | Bloch line memory and it's information transfer method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6413286A true JPS6413286A (en) | 1989-01-18 |
Family
ID=15841298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62166987A Pending JPS6413286A (en) | 1987-07-06 | 1987-07-06 | Bloch line memory and it's information transfer method |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS6413286A (en) |
DE (1) | DE3822737A1 (en) |
FR (1) | FR2618013A1 (en) |
GB (1) | GB2208143B (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0106358B1 (en) * | 1982-10-18 | 1990-01-03 | Nec Corporation | Magnetic memory device capable of memorizing information in a stripe domain in the form of a vertical bloch line pair |
JPS5998373A (en) * | 1982-11-26 | 1984-06-06 | Nec Corp | Magnetic storage element |
JPS6289295A (en) * | 1985-10-16 | 1987-04-23 | Nec Corp | Magnetic memory element and its production |
US4692899A (en) * | 1985-12-12 | 1987-09-08 | Sperry Corporation | Propagational control for Vertical Bloch Line memories |
-
1987
- 1987-07-06 JP JP62166987A patent/JPS6413286A/en active Pending
-
1988
- 1988-06-29 GB GB8815505A patent/GB2208143B/en not_active Expired - Lifetime
- 1988-07-05 DE DE3822737A patent/DE3822737A1/en active Granted
- 1988-07-05 FR FR8809082A patent/FR2618013A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2208143B (en) | 1992-03-04 |
FR2618013B1 (en) | 1993-02-26 |
DE3822737A1 (en) | 1989-01-19 |
GB8815505D0 (en) | 1988-08-03 |
GB2208143A (en) | 1989-03-01 |
FR2618013A1 (en) | 1989-01-13 |
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