JP2017525161A - 磁性構造体の磁区壁制御方法、及びそれを用いた磁気メモリ素子 - Google Patents
磁性構造体の磁区壁制御方法、及びそれを用いた磁気メモリ素子 Download PDFInfo
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- JP2017525161A JP2017525161A JP2017519429A JP2017519429A JP2017525161A JP 2017525161 A JP2017525161 A JP 2017525161A JP 2017519429 A JP2017519429 A JP 2017519429A JP 2017519429 A JP2017519429 A JP 2017519429A JP 2017525161 A JP2017525161 A JP 2017525161A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 281
- 230000005381 magnetic domain Effects 0.000 title claims abstract description 277
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000005415 magnetization Effects 0.000 claims abstract description 109
- 239000010409 thin film Substances 0.000 claims description 10
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 5
- 230000005294 ferromagnetic effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- 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
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- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
- G11C11/161—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect details concerning the memory cell structure, e.g. the layers of the ferromagnetic memory cell
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
- G11C11/165—Auxiliary circuits
- G11C11/1675—Writing or programming circuits or methods
-
- 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
- G11C19/085—Generating magnetic fields therefor, e.g. uniform magnetic field for magnetic domain stabilisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
- H01L27/105—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration including field-effect components
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hall/Mr Elements (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
Claims (13)
- 多数の磁区、及び前記磁区の間に介在された磁区壁を備える磁性構造体に、前記磁区壁の磁化方向に平行な第1方向に第1磁場及び前記磁区の磁化方向に平行な第2方向に第2磁場を印加する第1段階と、
前記磁性構造体に、前記第1方向の逆方向に第3磁場及び前記第2方向の逆方向に第4磁場を印加する第2段階と、を含んで行うことによって、
前記磁区壁を前記磁区壁の磁化方向または前記磁区の磁化方向と平行な方向に均一に移動させることができる磁性構造体の磁区壁制御方法。 - 多数の磁区、及び前記磁区の間に介在された磁区壁を備える磁性構造体に、前記磁区壁の磁化方向及び前記磁区の磁化方向とそれぞれ平行ではない磁場を印加する第1段階と、
前記磁性構造体に、前記磁化方向の逆方向にさらに他の磁場を印加する第2段階と、を含んで行うことによって、
前記磁区壁を前記磁区壁の磁化方向または前記磁区の磁化方向と平行な方向に均一に移動させることができる磁性構造体の磁区壁制御方法。 - 前記磁性構造体が、垂直磁気異方性を有する場合、
前記第1段階及び前記第2段階を含んで行うことによって、前記磁区壁は、前記磁区壁の磁化方向と平行な方向に均一に移動する請求項1または2のうち何れか一項に記載の磁性構造体の磁区壁制御方法。 - 前記磁性構造体が、水平磁気異方性を有する場合、
前記第1段階及び前記第2段階を含んで行うことによって、前記磁区壁は、前記磁区の磁化方向と平行な方向に均一に移動する請求項1または2のうち何れか一項に記載の磁性構造体の磁区壁制御方法。 - 前記磁区壁は、
前記磁性構造体の種類によって、前記磁化方向が決定されることによって、前記磁区壁の磁化方向または前記磁区の磁化方向と平行な方向に均一に移動が可能である請求項1または2のうち何れか一項に記載の磁性構造体の磁区壁制御方法。 - 前記第1段階及び前記第2段階を含んで行うことによって、
前記磁区壁の間の隔離距離を一定に保持しながら、前記磁区壁の磁化方向または前記磁区の磁化方向と平行な方向に均一に移動させることができる請求項1または2のうち何れか一項に記載の磁性構造体の磁区壁制御方法。 - 前記第1段階と前記第2段階とを交互に繰り返し行うことによって、
前記磁性構造体の磁化状態を一定の距離ほど前記磁区壁の磁化方向または前記磁区の磁化方向と平行な方向に均一に移動させることができる請求項1または2のうち何れか一項に記載の磁性構造体の磁区壁制御方法。 - 前記第2方向は、前記第1方向と垂直である請求項1に記載の磁性構造体の磁区壁制御方法。
- 前記第1磁場または前記第3磁場は、前記磁区壁の磁化方向と平行な成分であって、前記磁区壁のエネルギーの差が発生することによって、前記磁区壁の移動速度を制御することができる請求項1に記載の磁性構造体の磁区壁制御方法。
- 前記第2磁場または前記第4磁場は、前記磁区の磁化方向と平行な成分であって、前記磁区の大きさの差が発生することによって、前記磁区壁の移動速度を制御することができる請求項1に記載の磁性構造体の磁区壁制御方法。
- 請求項1または2のうち何れか一項に記載の前記磁性構造体の磁区壁制御方法による前記磁性構造体を含む磁気メモリ素子。
- 前記磁性構造体は、リボン状、ライン状または薄膜状のうち何れか1つを有する請求項11に記載の磁気メモリ素子。
- 前記磁性構造体と連結されたデータ記録素子及び読み取りヘッドをさらに含み、前記データ記録素子及び前記読み取りヘッドによって、データを記録または削除することができる請求項11に記載の磁気メモリ素子。
Applications Claiming Priority (3)
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KR10-2014-0089300 | 2014-07-15 | ||
KR1020140089300A KR101642478B1 (ko) | 2014-07-15 | 2014-07-15 | 자성 구조체의 자구벽 제어 방법 및 이를 이용한 자기 메모리 소자 |
PCT/KR2015/000458 WO2016010218A1 (ko) | 2014-07-15 | 2015-01-16 | 자성 구조체의 자구벽 제어 방법 및 이를 이용한 자기 메모리 소자 |
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JP2017525161A true JP2017525161A (ja) | 2017-08-31 |
JP6458140B2 JP6458140B2 (ja) | 2019-01-23 |
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US (1) | US9905310B2 (ja) |
EP (1) | EP3171364A4 (ja) |
JP (1) | JP6458140B2 (ja) |
KR (1) | KR101642478B1 (ja) |
WO (1) | WO2016010218A1 (ja) |
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KR101842133B1 (ko) * | 2016-05-30 | 2018-03-26 | 한국표준과학연구원 | 임프린팅 방식을 이용한 자화상태 제어 방법 |
JP6886888B2 (ja) * | 2017-08-02 | 2021-06-16 | 日本放送協会 | 磁壁移動素子および磁気メモリ |
JP2020155179A (ja) | 2019-03-20 | 2020-09-24 | キオクシア株式会社 | 半導体記憶装置 |
EP3916728A1 (en) | 2020-05-26 | 2021-12-01 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Increased efficiency of current induced motion of chiral domain walls by interface engineering |
US11348627B2 (en) | 2020-08-31 | 2022-05-31 | Samsung Electronics Co., Ltd. | Race-track memory with improved domain wall motion control |
EP4009324A1 (en) | 2020-12-03 | 2022-06-08 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Antiskyrmions and elliptical skyrmions in nano-stripes |
KR102378928B1 (ko) * | 2021-02-02 | 2022-03-28 | 한국표준과학연구원 | 스커미온 형성 장치 및 방법 |
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- 2014-07-15 KR KR1020140089300A patent/KR101642478B1/ko active IP Right Grant
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- 2015-01-16 US US15/325,827 patent/US9905310B2/en active Active
- 2015-01-16 JP JP2017519429A patent/JP6458140B2/ja active Active
- 2015-01-16 WO PCT/KR2015/000458 patent/WO2016010218A1/ko active Application Filing
- 2015-01-16 EP EP15822296.8A patent/EP3171364A4/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
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KR101642478B1 (ko) | 2016-07-25 |
US9905310B2 (en) | 2018-02-27 |
EP3171364A1 (en) | 2017-05-24 |
WO2016010218A1 (ko) | 2016-01-21 |
US20170162274A1 (en) | 2017-06-08 |
JP6458140B2 (ja) | 2019-01-23 |
KR20160008900A (ko) | 2016-01-25 |
EP3171364A4 (en) | 2018-02-28 |
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