KR100911631B1 - 외부 자기장 없이 자화 방향을 반전하기 위한 제어 장치 - Google Patents
외부 자기장 없이 자화 방향을 반전하기 위한 제어 장치 Download PDFInfo
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- KR100911631B1 KR100911631B1 KR1020047001161A KR20047001161A KR100911631B1 KR 100911631 B1 KR100911631 B1 KR 100911631B1 KR 1020047001161 A KR1020047001161 A KR 1020047001161A KR 20047001161 A KR20047001161 A KR 20047001161A KR 100911631 B1 KR100911631 B1 KR 100911631B1
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- South Korea
- Prior art keywords
- layer
- electrode
- ferromagnetic layer
- thickness
- magnetic
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Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 54
- 230000005415 magnetization Effects 0.000 title claims abstract description 27
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 46
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 13
- 230000005290 antiferromagnetic effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 229910015136 FeMn Inorganic materials 0.000 description 1
- 229910003289 NiMn Inorganic materials 0.000 description 1
- 229910019041 PtMn Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Classifications
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- 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
- G11C11/14—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements
- G11C11/15—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using thin-film elements using multiple magnetic layers
-
- 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
-
- 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
- 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
-
- 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
- H01F10/3268—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn
-
- 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
- H01F10/3268—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn
- H01F10/3281—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the exchange coupling being asymmetric, e.g. by use of additional pinning, by using antiferromagnetic or ferromagnetic coupling interface, i.e. so-called spin-valve [SV] structure, e.g. NiFe/Cu/NiFe/FeMn only by use of asymmetry of the magnetic film pair itself, i.e. so-called pseudospin valve [PSV] structure, e.g. NiFe/Cu/Co
-
- 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
- H01F10/329—Spin-exchange coupled multilayers wherein the magnetisation of the free layer is switched by a spin-polarised current, e.g. spin torque effect
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Nanotechnology (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hall/Mr Elements (AREA)
- Semiconductor Memories (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (9)
- 외부 자기장을 이용하지 않고 자화 반전을 제어하기 위한 장치로서,상기 제어 장치는 제 1 전극 (3), 제 2 전극 (7) 및 상기 제 1 전극 (3) 과 상기 제 2 전극 (7) 사이에서 제 1 전극 (3) 으로부터 시작되는 제 1 강자성층 (4), 비자성층 (5) 및 제 2 강자성층 (6) 을 포함하는 자기 제어부을 포함하고,상기 제 2 강자성층 (6) 의 두께는 상기 제 1 강자성층 (4) 의 두께보다 작고,상기 제 2 전극 (7) 의 두께는, 상기 제 2 강자성층 (6) 과 상기 제어 장치에 의해 제어되는 시스템 (8, 8B) 사이의 자기 결합을 가능하게 하는 두께인, 제어 장치.
- 제 1 항에 있어서,상기 제 2 전극과 상기 제어 장치에 의해 제어되는 시스템 (8, 8B) 사이의 갭을 포함하는 상기 제 2 전극의 두께는, 5 Å 내지 10,000 Å 인, 제어 장치.
- 제 1 항에 있어서,상기 제 1 강자성층은 10㎚ 이상 1㎛ 미만의 두께를 갖고,상기 비자성층은 1㎚ 이상 10㎚ 미만의 두께를 가지며,상기 제 2 강자성층은 상기 제 1 강자성층의 두께보다 작은 두께를 갖는, 제어 장치.
- 제 1 항에 있어서,상기 제 1 강자성층과 상기 제 1 전극 사이에 반(anti)강자성층 (9) 을 포함하는, 제어 장치.
- 제 4 항에 있어서,상기 반강자성층은 1㎚ 이상 10㎚ 미만의 두께를 갖는, 제어 장치.
- 제 1 항에 있어서,상기 제어 장치에 의해 제어되는 시스템은 상기 제 2 전극 상에 형성되는 자기 메모리 소자 (8B) 인, 제어 장치.
- 제 6 항에 있어서,상기 자기 메모리 소자는 제 1 강자성층 (10), 비자성층 (11), 제 2 강자성층 (12) 및 전극 (14) 을 포함하는, 제어 장치.
- 제 7 항에 있어서,상기 자기 메모리 소자는 제 2 강자성층 (12) 과 그 전극 (14) 사이에 반(anti)강자성층 (13) 을 포함하는, 제어 장치.
- 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110126A FR2828001B1 (fr) | 2001-07-27 | 2001-07-27 | Dispositif de commande de renversement de sens d'aimantation sans champ magnetique externe |
FR0110126 | 2001-07-27 | ||
PCT/FR2002/002684 WO2003019568A2 (fr) | 2001-07-27 | 2002-07-26 | Dispositif de commande de renversement de sens d'aimentation sans champ magnetique externe |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040017836A KR20040017836A (ko) | 2004-02-27 |
KR100911631B1 true KR100911631B1 (ko) | 2009-08-12 |
Family
ID=8866032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020047001161A KR100911631B1 (ko) | 2001-07-27 | 2002-07-26 | 외부 자기장 없이 자화 방향을 반전하기 위한 제어 장치 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7459998B2 (ko) |
EP (1) | EP1419506B1 (ko) |
JP (1) | JP2005501402A (ko) |
KR (1) | KR100911631B1 (ko) |
CN (1) | CN100476996C (ko) |
DE (1) | DE60203302T2 (ko) |
FR (1) | FR2828001B1 (ko) |
WO (1) | WO2003019568A2 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005109200A (ja) * | 2003-09-30 | 2005-04-21 | Fujitsu Ltd | 磁気抵抗効果素子、磁気メモリセル及び磁気ランダムアクセスメモリ装置 |
JP4920881B2 (ja) * | 2004-09-27 | 2012-04-18 | 株式会社日立製作所 | 低消費電力磁気メモリ及び磁化情報書き込み装置 |
FR2879349B1 (fr) * | 2004-12-15 | 2007-05-11 | Thales Sa | Dispositif a electronique de spin a commande par deplacement de parois induit par un courant de porteurs polarises en spin |
US7061797B1 (en) * | 2004-12-30 | 2006-06-13 | Infineon Technologies Ag | Hybrid memory cell for spin-polarized electron current induced switching and writing/reading process using such memory cell |
KR100792265B1 (ko) * | 2005-04-21 | 2008-01-07 | 인하대학교 산학협력단 | 좁은 자벽 생성 방법 및 이를 이용한 자기저항소자와자기장 발생장치 |
FR2911690B1 (fr) | 2007-01-19 | 2009-03-06 | Thales Sa | Dispositif d'amplification magnetique comportant un capteur magnetique a sensibilite longitudinale |
JP4682998B2 (ja) * | 2007-03-15 | 2011-05-11 | ソニー株式会社 | 記憶素子及びメモリ |
US11094361B2 (en) | 2018-09-05 | 2021-08-17 | Taiwan Semiconductor Manufacturing Company, Ltd. | Transistorless memory cell |
US10700125B2 (en) | 2018-09-28 | 2020-06-30 | Taiwan Semiconductor Manufacturing Co., Ltd. | Integrated system chip with magnetic module |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5541868A (en) | 1995-02-21 | 1996-07-30 | The United States Of America As Represented By The Secretary Of The Navy | Annular GMR-based memory element |
EP1096500A1 (en) * | 1999-10-27 | 2001-05-02 | Sony Corporation | Magnetization control method, information storage method, magnetic functional device, and information storage device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5477482A (en) * | 1993-10-01 | 1995-12-19 | The United States Of America As Represented By The Secretary Of The Navy | Ultra high density, non-volatile ferromagnetic random access memory |
FR2734058B1 (fr) | 1995-05-12 | 1997-06-20 | Thomson Csf | Amperemetre |
US5695864A (en) | 1995-09-28 | 1997-12-09 | International Business Machines Corporation | Electronic device using magnetic components |
JP3293437B2 (ja) * | 1995-12-19 | 2002-06-17 | 松下電器産業株式会社 | 磁気抵抗効果素子、磁気抵抗効果型ヘッド及びメモリー素子 |
FR2750769B1 (fr) | 1996-07-05 | 1998-11-13 | Thomson Csf | Capteur de champ magnetique en couche mince |
US6111784A (en) * | 1997-09-18 | 2000-08-29 | Canon Kabushiki Kaisha | Magnetic thin film memory element utilizing GMR effect, and recording/reproduction method using such memory element |
FR2771511B1 (fr) | 1997-11-25 | 2000-02-04 | Thomson Csf | Capteur de champ magnetique et procede de fabrication de ce capteur |
US6552882B1 (en) * | 1998-09-01 | 2003-04-22 | Nec Corporation | Information reproduction head apparatus and information recording/reproduction system |
FR2787197B1 (fr) | 1998-12-11 | 2001-02-23 | Thomson Csf | Capteur de champ magnetique a magnetoresistance geante |
JP4212397B2 (ja) * | 2003-03-28 | 2009-01-21 | 株式会社東芝 | 磁気メモリ及びその書き込み方法 |
JP4626253B2 (ja) * | 2004-10-08 | 2011-02-02 | ソニー株式会社 | 記憶装置 |
JP4585353B2 (ja) * | 2005-03-31 | 2010-11-24 | 株式会社東芝 | 磁性発振素子、磁気センサ、磁気ヘッドおよび磁気再生装置 |
-
2001
- 2001-07-27 FR FR0110126A patent/FR2828001B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-26 KR KR1020047001161A patent/KR100911631B1/ko active IP Right Grant
- 2002-07-26 DE DE60203302T patent/DE60203302T2/de not_active Expired - Lifetime
- 2002-07-26 CN CNB028192060A patent/CN100476996C/zh not_active Expired - Fee Related
- 2002-07-26 EP EP02796289A patent/EP1419506B1/fr not_active Expired - Lifetime
- 2002-07-26 US US10/484,381 patent/US7459998B2/en not_active Expired - Fee Related
- 2002-07-26 JP JP2003522939A patent/JP2005501402A/ja not_active Withdrawn
- 2002-07-26 WO PCT/FR2002/002684 patent/WO2003019568A2/fr active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5541868A (en) | 1995-02-21 | 1996-07-30 | The United States Of America As Represented By The Secretary Of The Navy | Annular GMR-based memory element |
EP1096500A1 (en) * | 1999-10-27 | 2001-05-02 | Sony Corporation | Magnetization control method, information storage method, magnetic functional device, and information storage device |
Also Published As
Publication number | Publication date |
---|---|
DE60203302T2 (de) | 2006-04-13 |
US20040196744A1 (en) | 2004-10-07 |
WO2003019568A3 (fr) | 2003-11-06 |
EP1419506B1 (fr) | 2005-03-16 |
JP2005501402A (ja) | 2005-01-13 |
CN1582480A (zh) | 2005-02-16 |
FR2828001A1 (fr) | 2003-01-31 |
US7459998B2 (en) | 2008-12-02 |
WO2003019568A2 (fr) | 2003-03-06 |
KR20040017836A (ko) | 2004-02-27 |
EP1419506A2 (fr) | 2004-05-19 |
FR2828001B1 (fr) | 2003-10-10 |
CN100476996C (zh) | 2009-04-08 |
DE60203302D1 (de) | 2005-04-21 |
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