KR20010050902A - 개선된 자계 응답을 갖는 자기 소자와 이의 제작 방법 - Google Patents
개선된 자계 응답을 갖는 자기 소자와 이의 제작 방법 Download PDFInfo
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- KR20010050902A KR20010050902A KR1020000058911A KR20000058911A KR20010050902A KR 20010050902 A KR20010050902 A KR 20010050902A KR 1020000058911 A KR1020000058911 A KR 1020000058911A KR 20000058911 A KR20000058911 A KR 20000058911A KR 20010050902 A KR20010050902 A KR 20010050902A
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- Prior art keywords
- layer
- electrode
- ferromagnetic layer
- ferromagnetic
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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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/716—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by two or more magnetic layers
-
- 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
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- 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
-
- 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
- H01F10/3254—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ]
-
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Power Engineering (AREA)
- Nanotechnology (AREA)
- Hall/Mr Elements (AREA)
- Thin Magnetic Films (AREA)
- Magnetic Heads (AREA)
- Semiconductor Memories (AREA)
- Measuring Magnetic Variables (AREA)
- Mram Or Spin Memory Techniques (AREA)
Abstract
Description
Claims (3)
- 자기 소자에 있어서,최고 상부 표면을 갖는 베이스 금속층(13)과,상기 베이스 금속층의 상기 최고 상부 표면에 위치하고, 강자성층(26)을 포함하는 제 1 전극(14)과,상기 제 1 전극으로부터 이격되어 위치하고, 강자성층(28)을 포함하는 제 2 전극(18)으로서, 상기 제 1 전극과 상기 제 2 전극의 상기 강자성층은 고정된 강자성층(26)과 자유 강자성층(28)을 조합하여 포함하되, 상기 고정된 강자성 층은 상기 자유층을 스위칭시킬 수 있는 인가된 자계가 존재할 때 선호되는 방향으로 고정되는 자화를 갖고, 상기 자유 강자성층은 인가된 자계가 존재할 때 자화 상태 사이에서 자유로이 회전하는 자화를 갖는, 제 2 전극(18)과,상기 제 1 전극의 상기 강자성층과 상기 제 2 전극의 상기 강자성층 사이에 위치한 스페이서(spacer)층(16)으로서, 상기 스페이서층 아래에 형성된 층 중 하나는, 상기 자유 강자성층과 상기 고정된 강자성층 사이의 감소된 위상 결합 강도가 달성되도록, x-선 비결정 구조인, 스페이서층(16)과,상기 베이스 금속층, 상기 제 1 및 제 2 전극, 및 상기 스페이서층이 위에 형성되는 기판(12)을 특징으로 하는, 자기 소자.
- 자기 소자에 있어서,베이스 금속층(13)과,베이스 금속층에 인접하여 위치한, 고정된 강자성층(26)과 이격되어 떨어진 자유 강자성층(28)으로서, 상기 고정된 강자성층은 상기 자유 강자성층을 스위칭시킬 수 있는 인가된 자계가 존재할 때 선호되는 방향으로 고정되는 자기 모멘트를 포함하고, 상기 자유 강자성층은, 상기 고정된 층의 상기 모멘트에 일반적으로 수직으로 배향되고, 인가된 자계가 존재할 때 상기 수직 방향으로부터 자유로이 회전하는 자기 모멘트를 포함하는, 고정된 강자성층(26) 및 자유 강자성층(28)과,상기 고정된 강자성층과 상기 자유 강자성층 사이에 위치한 스페이서층(16)으로서, 상기 스페이서층 아래에 형성된 적어도 하나의 층은 상기 자유 강자성층과 상기 고정된 강자성층 사이의 감소된 위상 결합 강도를 생성하기 위하여 x-선 비결정 구조를 갖는, 스페이서층(16)을 포함하는, 자기 소자.
- 자기 소자를 제작하는 방법에 있어서,표면을 갖는 기판 소자(12)를 제공하는 단계와,상기 기판의 최고 상부 표면에 베이스 금속층(13)을 형성하는 단계와,상기 베이스 금속층 상에 강자성층을 포함하는 제 1 전극(14)을 형성하는 단계와,상기 제 1 전극으로부터 이격되어 위치하고, 강자성층을 포함하는 제 2 전극(18)을 형성하는 단계로서, 상기 제 1 전극과 상기 제 2 전극의 상기 강자성층은 고정된 강자성층(26)과 자유 강자성층(28)을 조합하여 포함하며, 상기 고정된 강자성 층은 상기 자유층을 스위칭시킬 수 있는 인가된 자계가 존재할 때 선호되는 방향으로 고정되는 자화를 갖고, 상기 자유 강자성층은 인가된 자계가 존재할 때 자화 상태 사이에서 자유로이 회전하는 자화를 갖는, 제 2 전극(18)을 형성하는 단계와,상기 제 1 전극의 상기 강자성층과 상기 제 2 전극의 상기 강자성층 사이에 위치한 스페이서층(16)을 형성하는 단계로서, 상기 스페이서층 아래에 형성된 적어도 하나의 층은 x-선 비결정 구조를 가지며, 상기 자유 강자성층과 상기 고정된 강자성층 사이에서 감소된 위상 결합 강도를 생성하는, 스페이서층(16)을 형성하는 단계를 포함하는, 자기 소자를 제작하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/422,447 US6205052B1 (en) | 1999-10-21 | 1999-10-21 | Magnetic element with improved field response and fabricating method thereof |
US9/422,447 | 1999-10-21 | ||
US09/422,447 | 1999-10-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010050902A true KR20010050902A (ko) | 2001-06-25 |
KR100807295B1 KR100807295B1 (ko) | 2008-02-28 |
Family
ID=23674929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000058911A KR100807295B1 (ko) | 1999-10-21 | 2000-10-06 | 개선된 자계 응답을 갖는 자기 소자와 이의 제작 방법 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6205052B1 (ko) |
EP (1) | EP1094329A3 (ko) |
JP (1) | JP2001203405A (ko) |
KR (1) | KR100807295B1 (ko) |
CN (1) | CN1192392C (ko) |
SG (1) | SG87185A1 (ko) |
TW (1) | TW498167B (ko) |
Cited By (1)
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KR101149393B1 (ko) * | 2004-07-26 | 2012-05-25 | 에버스핀 테크놀러지스, 인크. | 자기 터널 접합 소자 구조들 및 이를 제조하는 방법 |
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-
1999
- 1999-10-21 US US09/422,447 patent/US6205052B1/en not_active Expired - Lifetime
-
2000
- 2000-10-03 TW TW089120549A patent/TW498167B/zh not_active IP Right Cessation
- 2000-10-06 KR KR1020000058911A patent/KR100807295B1/ko active IP Right Grant
- 2000-10-13 SG SG200005854A patent/SG87185A1/en unknown
- 2000-10-18 JP JP2000317501A patent/JP2001203405A/ja active Pending
- 2000-10-19 EP EP00122809A patent/EP1094329A3/en not_active Withdrawn
- 2000-10-20 CN CNB001316257A patent/CN1192392C/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101149393B1 (ko) * | 2004-07-26 | 2012-05-25 | 에버스핀 테크놀러지스, 인크. | 자기 터널 접합 소자 구조들 및 이를 제조하는 방법 |
Also Published As
Publication number | Publication date |
---|---|
TW498167B (en) | 2002-08-11 |
SG87185A1 (en) | 2002-03-19 |
CN1294390A (zh) | 2001-05-09 |
EP1094329A3 (en) | 2004-09-01 |
KR100807295B1 (ko) | 2008-02-28 |
JP2001203405A (ja) | 2001-07-27 |
EP1094329A2 (en) | 2001-04-25 |
US6205052B1 (en) | 2001-03-20 |
CN1192392C (zh) | 2005-03-09 |
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