JP2552083B2 - 磁界検出装置および方法 - Google Patents
磁界検出装置および方法Info
- Publication number
- JP2552083B2 JP2552083B2 JP6050499A JP5049994A JP2552083B2 JP 2552083 B2 JP2552083 B2 JP 2552083B2 JP 6050499 A JP6050499 A JP 6050499A JP 5049994 A JP5049994 A JP 5049994A JP 2552083 B2 JP2552083 B2 JP 2552083B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- atom
- magnetic field
- predetermined
- atoms
- 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 - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 181
- 238000000034 method Methods 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims description 94
- 150000002500 ions Chemical class 0.000 claims description 37
- 230000007704 transition Effects 0.000 claims description 32
- 230000005294 ferromagnetic effect Effects 0.000 claims description 29
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 239000013078 crystal Substances 0.000 claims description 7
- 229910015187 FePd Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 230000005290 antiferromagnetic effect Effects 0.000 description 28
- 238000010438 heat treatment Methods 0.000 description 15
- 238000012545 processing Methods 0.000 description 12
- 239000010948 rhodium Substances 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 8
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical group [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 229910052703 rhodium Inorganic materials 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000005307 ferromagnetism Effects 0.000 description 6
- OMEXLMPRODBZCG-UHFFFAOYSA-N iron rhodium Chemical compound [Fe].[Rh] OMEXLMPRODBZCG-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 230000005303 antiferromagnetism Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- AIYUHDOJVYHVIT-UHFFFAOYSA-M caesium chloride Chemical compound [Cl-].[Cs+] AIYUHDOJVYHVIT-UHFFFAOYSA-M 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002885 antiferromagnetic material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003868 zero point energy Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
-
- 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
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- 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
- G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
-
- 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
- G11B5/465—Arrangements for demagnetisation of heads
-
- 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Hall/Mr Elements (AREA)
- Measuring Magnetic Variables (AREA)
- Magnetic Heads (AREA)
- Thin Magnetic Films (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US056003 | 1993-04-30 | ||
| US08/056,003 US5440233A (en) | 1993-04-30 | 1993-04-30 | Atomic layered materials and temperature control for giant magnetoresistive sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06326376A JPH06326376A (ja) | 1994-11-25 |
| JP2552083B2 true JP2552083B2 (ja) | 1996-11-06 |
Family
ID=22001528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6050499A Expired - Fee Related JP2552083B2 (ja) | 1993-04-30 | 1994-03-22 | 磁界検出装置および方法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5440233A (enExample) |
| EP (1) | EP0622637A3 (enExample) |
| JP (1) | JP2552083B2 (enExample) |
| KR (1) | KR0157249B1 (enExample) |
| CN (1) | CN1066277C (enExample) |
| MY (1) | MY113380A (enExample) |
| SG (1) | SG44358A1 (enExample) |
| TW (1) | TW253964B (enExample) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO175906C (no) * | 1992-05-18 | 1995-01-04 | Leif Inge Aanestad | Fremgangsmåte for metallbelegging av innvendige flater i tanker og rör |
| JPH08510095A (ja) * | 1994-02-21 | 1996-10-22 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 磁性体の磁化方向を部分的に変える方法及び装置 |
| US5650887A (en) * | 1996-02-26 | 1997-07-22 | International Business Machines Corporation | System for resetting sensor magnetization in a spin valve magnetoresistive sensor |
| US5747997A (en) * | 1996-06-05 | 1998-05-05 | Regents Of The University Of Minnesota | Spin-valve magnetoresistance sensor having minimal hysteresis problems |
| US6166539A (en) * | 1996-10-30 | 2000-12-26 | Regents Of The University Of Minnesota | Magnetoresistance sensor having minimal hysteresis problems |
| US5978163A (en) * | 1996-09-23 | 1999-11-02 | International Business Machines Corporation | Circuit and method for optimizing bias supply in a magnetoresistive head based on temperature |
| WO1998041981A1 (en) * | 1997-03-14 | 1998-09-24 | Seagate Technology, Inc. | Disc drive servo system employing thermal signals |
| US5999360A (en) * | 1996-10-15 | 1999-12-07 | Seagate Technology, Inc. | Disc drive servo system employing thermal signals |
| US6118622A (en) * | 1997-05-13 | 2000-09-12 | International Business Machines Corporation | Technique for robust resetting of spin valve head |
| US6486660B1 (en) * | 2000-07-13 | 2002-11-26 | Seagate Technology Llc | Thermal slider level transfer curve tester for testing recording heads |
| US6597544B2 (en) * | 2000-12-11 | 2003-07-22 | International Business Machines Corporation | Thermoelectric microcoolers for cooling write coils and GMR sensors in magnetic heads for disk drives |
| US6994141B2 (en) * | 2003-01-08 | 2006-02-07 | International Business Machines Corporation | Process, apparatus, and system for adhesive bond strength recovery using joule heating |
| JP4184936B2 (ja) * | 2003-11-27 | 2008-11-19 | 株式会社東芝 | 磁気ヘッド検査装置、磁気ヘッド検査方法及びディスクドライブ |
| US7615771B2 (en) * | 2006-04-27 | 2009-11-10 | Hitachi Global Storage Technologies Netherlands, B.V. | Memory array having memory cells formed from metallic material |
| US7633039B2 (en) | 2006-08-31 | 2009-12-15 | Infineon Technologies Ag | Sensor device and a method for manufacturing the same |
| EP4172360A4 (en) * | 2020-06-30 | 2024-01-17 | The Board of Trustees of the Leland Stanford Junior University | METHOD AND DEVICE FOR AUTOMATED AND POINT-OF-CARE NUCLEIC ACID AMPLIFICATION TESTING |
| CN111883641B (zh) * | 2020-07-22 | 2022-01-28 | 北京大学 | 一种室温热激发自旋极化电流源及其实现方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3637442A (en) * | 1967-02-13 | 1972-01-25 | Gen Electric | Process for producing plastically deformed iron-rhodium base alloy bodies |
| US3607460A (en) * | 1968-11-18 | 1971-09-21 | Gen Electric | First order transition films for magnetic recording and method of forming |
| US3609719A (en) * | 1969-12-17 | 1971-09-28 | Gen Electric | First order transition recording utilizing incomplete transition iron-rhodium films |
| US4012781A (en) * | 1975-08-14 | 1977-03-15 | International Business Machines Corporation | Magnetoresistive read head assembly for servo operation |
| US4023965A (en) * | 1976-06-03 | 1977-05-17 | International Business Machines Corporation | Ni-Fe-Rh alloys |
| US4103315A (en) * | 1977-06-24 | 1978-07-25 | International Business Machines Corporation | Antiferromagnetic-ferromagnetic exchange bias films |
| GB2016788A (en) * | 1978-01-30 | 1979-09-26 | Secretary Industry Brit | Improvements in or Relating to Magneto-Resistive Readout Elements |
| JPS59210521A (ja) * | 1983-05-13 | 1984-11-29 | Matsushita Electric Ind Co Ltd | 磁気抵抗効果型再生ヘツド |
| US4476454A (en) * | 1983-06-30 | 1984-10-09 | International Business Machines Corporation | New magnetoresistive materials |
| JPS63175202A (ja) * | 1987-01-16 | 1988-07-19 | Hitachi Ltd | 磁気メモリパツケ−ジ |
| US4755897A (en) * | 1987-04-28 | 1988-07-05 | International Business Machines Corporation | Magnetoresistive sensor with improved antiferromagnetic film |
| US4782413A (en) * | 1987-04-28 | 1988-11-01 | International Business Machines Corporation | Magnetoresistive sensor with mixed phase antiferromagnetic film |
| JPH01251303A (ja) * | 1988-03-30 | 1989-10-06 | Matsushita Electric Ind Co Ltd | 磁気ヘッド |
| DE3820475C1 (enExample) * | 1988-06-16 | 1989-12-21 | Kernforschungsanlage Juelich Gmbh, 5170 Juelich, De | |
| SU1534082A1 (ru) * | 1988-06-27 | 1990-01-07 | Уральский Государственный Университет Им.А.М.Горького | Магниторезистивный сплав |
| US5001586A (en) * | 1989-08-01 | 1991-03-19 | International Business Machines Corporation | Very low noise magnetoresistive sensor for high density media applications |
| US5014147A (en) * | 1989-10-31 | 1991-05-07 | International Business Machines Corporation | Magnetoresistive sensor with improved antiferromagnetic film |
| JPH04149812A (ja) * | 1990-10-15 | 1992-05-22 | Hitachi Ltd | 磁気ヘッド |
| US5159513A (en) * | 1991-02-08 | 1992-10-27 | International Business Machines Corporation | Magnetoresistive sensor based on the spin valve effect |
-
1993
- 1993-04-30 US US08/056,003 patent/US5440233A/en not_active Expired - Fee Related
-
1994
- 1994-03-22 JP JP6050499A patent/JP2552083B2/ja not_active Expired - Fee Related
- 1994-03-30 KR KR1019940006483A patent/KR0157249B1/ko not_active Expired - Fee Related
- 1994-03-30 CN CN94103797A patent/CN1066277C/zh not_active Expired - Fee Related
- 1994-03-30 MY MYPI94000767A patent/MY113380A/en unknown
- 1994-04-15 EP EP94105889A patent/EP0622637A3/en not_active Withdrawn
- 1994-04-15 SG SG1995002237A patent/SG44358A1/en unknown
- 1994-06-21 TW TW083105612A patent/TW253964B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| TW253964B (enExample) | 1995-08-11 |
| EP0622637A2 (en) | 1994-11-02 |
| JPH06326376A (ja) | 1994-11-25 |
| KR0157249B1 (ko) | 1999-02-18 |
| SG44358A1 (en) | 1997-12-19 |
| EP0622637A3 (en) | 1995-10-18 |
| CN1066277C (zh) | 2001-05-23 |
| MY113380A (en) | 2002-02-28 |
| US5440233A (en) | 1995-08-08 |
| CN1094836A (zh) | 1994-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |