JPWO2008004535A1 - スライダー、一体型スライダー、およびハイブリッド記録装置 - Google Patents
スライダー、一体型スライダー、およびハイブリッド記録装置 Download PDFInfo
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- JPWO2008004535A1 JPWO2008004535A1 JP2008523681A JP2008523681A JPWO2008004535A1 JP WO2008004535 A1 JPWO2008004535 A1 JP WO2008004535A1 JP 2008523681 A JP2008523681 A JP 2008523681A JP 2008523681 A JP2008523681 A JP 2008523681A JP WO2008004535 A1 JPWO2008004535 A1 JP WO2008004535A1
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- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910005542 GaSb Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910007709 ZnTe Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
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- 230000002238 attenuated effect Effects 0.000 description 1
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- 229910000424 chromium(II) oxide Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 description 1
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- 229910052720 vanadium Inorganic materials 0.000 description 1
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
- G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/102—Manufacture of housing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/1058—Flying 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
-
- 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
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Optics & Photonics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Electromagnetism (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
- Optical Head (AREA)
Abstract
Description
(1)式は、熱揺らぎ係数を示し、km、V、k、Tはそれぞれ磁気異方性エネルギー、記録ビット体積、ボルツマン定数、絶対温度を示す。既存の磁気記録(ハードディスク)用の媒体においては、高記録密度化に伴い記録ビットの体積(V)が減少するため、熱揺らぎ係数が大きくなる。この熱揺らぎ係数が大きくなると、スピン反転が偶発するなど、磁気情報が不安定になることが一般的に知られている。
3 開口部
4 軸
5 軸
6 軸
7 軸
8 周期溝
8−1,8−2,8−3,8−4,8−5 溝
9 周期溝
9−1,9−2,9−3,9−4,9−5 溝
10 周期溝
10−1,10−2,10−3,10−4,10−5 溝
11 周期溝
11−1,11−2,11−3,11−4,11−5 溝
20 スライダー
50 ディスク基板
60 磁気記録層
70 ヘッド(光学部品)
71 リッジ部(半導体レーザの共振器)
(1−1.スライダー金属面)
本実施の形態にかかる、スライダー20の表面に備えられている金属膜2の表面について、図1を用い、説明する。
次に、金属膜2表面に照射された直線偏光が、円偏光に変換されることについて説明する。
次に、図1、および図3から図8を用い、Maxwell方程式に基づく3次元電磁場解析法である、Finite-Difference Time-Domain(FDTD)法により検証した結果を示す。
(3−1.ハイブリッド記録装置の概要構成)
図9に、本実施形態にかかるハイブリッド記録装置の概略図を示す。
図10に示すのは、スライダー20と隣接する位置に埋め込まれている半導体レーザのヘッド70(光学部品)と、周期溝8,9,10,11との配置関係である。
図11に示すのは、一体型スライダーである。
(4−1.溝の間隔)
図1に示す、周期溝8,9,10,11のそれぞれを構成する溝8−n,9−n,10−n,11−nの、それぞれの、隣り合う間隔であるAは、入射光の波数の金属膜2表面と平行な成分と、金属膜2の表面を伝播する表面プラズモンの波数のマッチングを取るように定められる。例えば、非特許文献1に記載されており、これは、下式(3)式として示される。
次に、図1、および、図13を用い、金属膜2に形成されている開口部3の断面形状について説明する。
Claims (7)
- 金属膜を有し、磁気記録層への情報の書き込み、および、読み込みを行うスライダーにおいて、
上記金属膜の表面に開口部が形成され、
上記開口部で、互いに略垂直に交わる複数の軸に対して、略垂直に配置された複数の溝を有する複数の周期溝が形成され、
上記複数の周期溝は、上記開口部に対して互いに点対称の位置関係であることを特徴とするスライダー。 - 上記開口部の、上記金属膜の表面に対して垂直方向の断面形状が、テーパ形状を有し、上記周期溝を有する側の面の開口部の開口面積が、もう一方の面の開口部の開口面積よりも広いことを特徴とする請求項1に記載のスライダー。
- 請求項1または2に記載のスライダーと、該スライダーに隣接する位置に光学部品とを備え、該光学部品は、上記金属膜の表面に直線偏光を入射し、上記開口部から円偏光を放射することを特徴とする一体型スライダー。
- 上記光学部品が、上記金属膜に組み込まれていることを特徴とする請求項3に記載の一体型スライダー。
- 上記光学部品は、半導体レーザの共振器であることを特徴とする請求項3または4に記載の一体型スライダー。
- 上記開口部は、上記直線偏光の波長よりも小さいことを特徴とする請求項3〜5のいずれか一項に記載の一体型スライダー。
- 請求項1または2に記載のスライダーと、該スライダーに対向する位置に配置された磁気記録層を備えるディスク基板とを備え、光学部品から出射された直線偏光を、上記開口部に導くことで、上記磁気記録層に熱エネルギーを与え、外部磁場を上記磁気記録層に印加して磁気記録を行うことを特徴とするハイブリッド記録装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006183605 | 2006-07-03 | ||
JP2006183605 | 2006-07-03 | ||
PCT/JP2007/063276 WO2008004535A1 (fr) | 2006-07-03 | 2007-07-03 | Curseur, curseur de type intégré et appareil d'enregistrement hybride |
Publications (2)
Publication Number | Publication Date |
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JPWO2008004535A1 true JPWO2008004535A1 (ja) | 2009-12-03 |
JP4680298B2 JP4680298B2 (ja) | 2011-05-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008523681A Expired - Fee Related JP4680298B2 (ja) | 2006-07-03 | 2007-07-03 | スライダー、一体型スライダー、およびハイブリッド記録装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8045294B2 (ja) |
JP (1) | JP4680298B2 (ja) |
WO (1) | WO2008004535A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5326984B2 (ja) * | 2009-07-17 | 2013-10-30 | ソニー株式会社 | 光学素子及び光学装置 |
JP5812380B2 (ja) * | 2010-07-16 | 2015-11-11 | 学校法人日本大学 | 情報記録ヘッド、情報記録装置、情報記録方法及び光デバイス |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001291264A (ja) * | 2000-04-06 | 2001-10-19 | Fuji Xerox Co Ltd | 光ヘッド |
JP2001319365A (ja) * | 2000-05-10 | 2001-11-16 | Fuji Xerox Co Ltd | 浮上記録ヘッド、ディスク装置、および浮上記録ヘッドの製造方法 |
JP2004061880A (ja) * | 2002-07-29 | 2004-02-26 | Nec Corp | 光学素子、光モジュール並びにこれを用いた光ヘッド及び光記録/再生装置 |
JP2004127389A (ja) * | 2002-09-30 | 2004-04-22 | Toshiba Corp | 記録/再生ヘッド及び記録/再生装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004362771A (ja) | 2004-08-23 | 2004-12-24 | Fuji Xerox Co Ltd | 記録再生ディスクおよび記録再生ディスク装置 |
JP4507840B2 (ja) * | 2004-11-08 | 2010-07-21 | ソニー株式会社 | 光アシスト型磁気記録ヘッド、磁気記録装置、及び光アシスト型磁気記録ヘッドの製造方法 |
-
2007
- 2007-07-03 JP JP2008523681A patent/JP4680298B2/ja not_active Expired - Fee Related
- 2007-07-03 US US12/306,484 patent/US8045294B2/en not_active Expired - Fee Related
- 2007-07-03 WO PCT/JP2007/063276 patent/WO2008004535A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001291264A (ja) * | 2000-04-06 | 2001-10-19 | Fuji Xerox Co Ltd | 光ヘッド |
JP2001319365A (ja) * | 2000-05-10 | 2001-11-16 | Fuji Xerox Co Ltd | 浮上記録ヘッド、ディスク装置、および浮上記録ヘッドの製造方法 |
JP2004061880A (ja) * | 2002-07-29 | 2004-02-26 | Nec Corp | 光学素子、光モジュール並びにこれを用いた光ヘッド及び光記録/再生装置 |
JP2004127389A (ja) * | 2002-09-30 | 2004-04-22 | Toshiba Corp | 記録/再生ヘッド及び記録/再生装置 |
Also Published As
Publication number | Publication date |
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JP4680298B2 (ja) | 2011-05-11 |
US20090279208A1 (en) | 2009-11-12 |
US8045294B2 (en) | 2011-10-25 |
WO2008004535A1 (fr) | 2008-01-10 |
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