JP2006196151A - パターン形成された薄膜及びその膜の熱支援磁気記録媒体での温度制御層としての使用 - Google Patents
パターン形成された薄膜及びその膜の熱支援磁気記録媒体での温度制御層としての使用 Download PDFInfo
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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
- G11B5/62—Record carriers characterised by the selection of the material
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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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/855—Coating only part of a support with a magnetic layer
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- 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
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- 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
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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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
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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
- 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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Abstract
【解決手段】パターン形成された薄膜は、比較的高熱伝導率材料の領域によって分離された比較的低熱伝導率材料の領域を含む。低熱伝導率領域は、高熱伝導率材料の連続的なマトリックス中に構成された円筒又は直方体の形態で設けることができる。熱支援磁気記録媒体などのデータ記録媒体中で温度制御層として、この薄膜を使用することができる。
【選択図】図3
Description
本発明は、米国の国立標準技術研究所(NIST)によって授与された契約第70NANB1H3056号に基づく米国政府の支援によってなされた。米国政府は、本発明に一定の権利を有する。
39 下層
40 薄膜温度制御層
40a 低熱伝導率領域
40b 高熱伝導率領域
42 磁気記録層
42a 記録領域
42b スペーサ領域
43 保護膜
Claims (30)
- 少なくとも部分的に薄膜の膜厚を貫通して延在する低熱伝導率材料の領域と、前記低熱伝導率材料の領域を分離する高熱伝導率材料の領域とを含む薄膜において、これらの領域が、前記低熱伝導率の領域よりも前記高熱伝導率の領域で、前記薄膜の膜厚を貫通する熱伝導がより大きくなるように構成および配置されている薄膜。
- 前記低熱伝導率の領域が、実質的に円筒形である請求項1に記載された薄膜。
- 前記実質的に円筒形である低熱伝導率の領域が、約2〜約50nmの断面直径を有する請求項2に記載された薄膜。
- 前記低熱伝導率の領域が、実質的に長方形の断面を有する請求項2に記載された薄膜。
- 前記実質的に長方形の断面が、約5〜約50nmの辺の長さを有する請求項4に記載された薄膜。
- 前記低熱伝導率の領域が、約2〜約50nmの間隔で互いに隔置されている請求項1に記載された薄膜。
- 前記低熱伝導率の領域が、酸化物、ホウ化物、炭化物、及び/又は窒化物を含む請求項1に記載された薄膜。
- 前記低熱伝導率の領域が、SiO2、ZrO2、NiO、Al2O3、MgO、Ta2O5、TiO2、HfB2、TaB2、ZrN、TiN、AlN、Si3N4、ZrC、及び/又はSiCを含む請求項1に記載された薄膜。
- 前記低熱伝導率の領域が、0.1cal/sec/K/cmよりも小さい熱伝導率を有する請求項1に記載された薄膜。
- 前記高伝導率の領域が、連続するマトリックスを含む請求項1に記載された薄膜。
- 前記高伝導率の領域が、金属又は金属合金を含む請求項1に記載された薄膜。
- 前記高熱伝導率の領域が、Cu、CuZr、Au、Ag、Al、Pt、Cr、Mo、W、又はその合金を含む請求項1に記載された薄膜。
- 前記高熱伝導率の領域が、0.1cal/sec/K/cmより大きな熱伝導率を有する請求項1に記載された薄膜。
- 前記薄膜が、約500nmより薄い厚さを有する請求項1に記載された薄膜。
- 前記低熱伝導率の領域が、磁気記録媒体のビット・パターンに対応するパターンで配置されている請求項1に記載された薄膜。
- 前記低熱伝導率の領域の各々が、前記磁気記録媒体の1ビットに対応している請求項15に記載された薄膜。
- 記録層と、該記録層に隣接するパターン形成された薄膜とを含むデータ記録媒体において、
前記薄膜が、少なくとも部分的に薄膜の膜厚を貫通して延在する低熱伝導率材料の領域と、前記低熱伝導率材料の領域を分離する高熱伝導率材料の領域とを含み、これらの領域が、前記低熱伝導率の領域よりも前記高熱伝導率の領域で、前記薄膜の膜厚を貫通する熱伝導がより大きくなるように構成および配置されているデータ記録媒体。 - 前記低熱伝導率の領域が、実質的に円筒形である請求項17に記載されたデータ記録媒体。
- 前記低熱伝導率の領域が、実質的に直方体である請求項17に記載されたデータ記録媒体。
- 前記低熱伝導率の領域が、0.1cal/sec/K/cmより小さい熱伝導率を有し、前記高熱伝導率の領域が、0.1cal/sec/K/cmより大きい熱伝導率を有する請求項17に記載されたデータ記録媒体。
- 前記記録層が、ビット・パターンを含む請求項17に記載されたデータ記録媒体。
- 前記低熱伝導率の領域が、前記記録層の前記ビット・パターンに対応するパターンに配置されている請求項21に記載されたデータ記録媒体。
- 前期低熱伝導率の領域の各々が、前記記録層の1ビットに対応している請求項22に記載されたデータ記録媒体。
- 前記記録層の各ビットが、FePt、FePtNi、CoCrPt、Co/Pt多層体、及び/又は希土類/遷移金属合金を含む請求項21に記載されたデータ記録媒体。
- 各ビットが、NiO、SiO2、及び/又はCrを含む材料によって分離されている請求項21に記載されたデータ記録媒体。
- 前記記録媒体が熱支援記録媒体である請求項17に記載されたデータ記録媒体。
- パターン形成された温度制御層を製作する方法において、
空の領域及び充填された領域のパターンを含む、除去可能な材料の層を形成する段階と、
第1の熱伝導率を有する第1の材料で前記空の領域を充填する段階と、
前記除去可能な材料を除去する段階と、
それまで前記除去可能な材料によって占められていた領域を、前記第1の熱伝導率とは異なる第2の熱伝導率を有する第2の材料で充填する段階とを含む、温度制御層の製作方法。 - 前記第1の材料が、前記第2の材料よりも小さい熱伝導率を有する請求項27に記載された温度制御層の製作方法。
- 前記除去可能な材料が、2ブロック共重合体膜又は配向されたゼオライト膜を含む請求項27に記載された温度制御層の製作方法。
- 記録媒体と熱支援磁気記録ヘッドとを含む熱支援磁気記録システムにおいて、前記記録媒体が、磁気記録層と、前記磁気記録層に隣接するパターン形成された薄膜とを含み、
前記薄膜が、少なくとも部分的に薄膜の膜厚を貫通して延在する低熱伝導率材料の領域と、前記低熱伝導率材料の領域を分離する高熱伝導率材料の領域とを含み、これらの領域が、前記低熱伝導率の領域よりも前記高熱伝導率の領域で、前記薄膜の膜厚を貫通する熱伝導がより大きくなるように構成および配置されており、
前記熱支援磁気記録ヘッドが、前記記録媒体に隣接して配置可能であり、
前記熱支援磁気記録ヘッドが、磁気書き込み磁場を前記記録媒体に加えるための書き込み極と、前記書き込み極が前記磁気書き込み磁場を前記記録媒体に加える場所に近接する前記記録媒体を加熱するための熱源とを含む熱支援磁気記録システム。
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US10916262B1 (en) | 2019-12-23 | 2021-02-09 | Seagate Technology Llc | Near field transducers including copper based alloys |
US11763845B2 (en) * | 2021-12-08 | 2023-09-19 | Seagate Technology Llc | Magnetic stack including non-magnetic seed layer for hard disk drive media |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2732282C3 (de) | 1977-07-16 | 1982-03-25 | Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt | Verfahren zum Herstellen einer magnetischen Speicherschicht |
US4935278A (en) | 1988-04-28 | 1990-06-19 | International Business Machines Corporation | Thin film magnetic recording disk and fabrication process |
US5170390A (en) | 1988-08-22 | 1992-12-08 | Sharp Kabushiki Kaisha | Optical recording element and driving system |
DE69127902D1 (de) | 1990-08-10 | 1997-11-13 | Minnesota Mining & Mfg | Direkt überschreibbares thermomagnetisches speichersystem mit hoher speicherdichte |
US5768075A (en) | 1991-12-17 | 1998-06-16 | Baradun R&D Ltd. | Disk medium w/magnetically filled features aligned in rows and columns |
JPH05342655A (ja) * | 1992-06-12 | 1993-12-24 | Hitachi Ltd | 光磁気記録媒体 |
US5587223A (en) | 1992-10-19 | 1996-12-24 | Board Of Trustees Leland Stanford, Jr. University | High density magnetic information storage medium |
US5399372A (en) | 1993-11-08 | 1995-03-21 | Southwall Technologies, Inc. | Method of patterning magnetic members |
US5820769A (en) | 1995-05-24 | 1998-10-13 | Regents Of The University Of Minnesota | Method for making magnetic storage having discrete elements with quantized magnetic moments |
JPH10269502A (ja) | 1997-03-26 | 1998-10-09 | Fujitsu Ltd | 磁気記録方法および磁気ディスク装置 |
US6775100B1 (en) | 1997-05-05 | 2004-08-10 | Seagate Technology Llc | Laser assisted track width definition and radial control with magnetic recording |
US6194048B1 (en) | 1997-07-25 | 2001-02-27 | Ebara Corporation | Magnetic recording disk |
US5981017A (en) | 1997-12-19 | 1999-11-09 | Western Digital Corporation | Magnetic disk having a heat sink layer above the substrate and method of making |
US6162532A (en) | 1998-07-31 | 2000-12-19 | International Business Machines Corporation | Magnetic storage medium formed of nanoparticles |
JP2000195034A (ja) * | 1998-12-25 | 2000-07-14 | Toshiba Corp | 磁気記録媒体とその製造方法 |
US6603619B1 (en) | 1999-01-07 | 2003-08-05 | Sharp Kabushiki Kaisha | Magnetic storage medium and heat assisted recording and reproduction method |
JP4073567B2 (ja) | 1999-01-11 | 2008-04-09 | シャープ株式会社 | 熱アシスト磁気記録媒体 |
JP2001076331A (ja) * | 1999-09-02 | 2001-03-23 | Toshiba Corp | 磁気記録媒体及び磁気記録再生装置 |
JP4467116B2 (ja) | 1999-12-20 | 2010-05-26 | 富士電機デバイステクノロジー株式会社 | 磁気記録媒体 |
JP3677423B2 (ja) | 1999-12-28 | 2005-08-03 | 株式会社東芝 | 熱アシスト磁気記録方法及び熱アシスト磁気記録装置 |
JP4185228B2 (ja) | 2000-01-21 | 2008-11-26 | Tdk株式会社 | 磁気記録媒体および磁気記録再生方法 |
US7042810B2 (en) | 2000-01-31 | 2006-05-09 | Kabushiki Kaisha Toshiba | Thermally-assisted magnetic recording head, method of manufacturing the same, and thermally-assisted magnetic recording apparatus |
JP2001319314A (ja) * | 2000-02-29 | 2001-11-16 | Hitachi Ltd | 磁気記録媒体とその製法およびそれを用いた磁気記録装置 |
US6703099B2 (en) | 2000-07-27 | 2004-03-09 | Seagate Technology Llc | Perpendicular magnetic recording media with patterned soft magnetic underlayer |
JP2002074647A (ja) | 2000-08-25 | 2002-03-15 | Hitachi Maxell Ltd | 磁気記録媒体及びそれを用いた磁気記録装置 |
US20020034666A1 (en) | 2000-09-07 | 2002-03-21 | Kiely James Dillon | Magnetic recording medium utilizing patterned nanoparticle arrays |
JP3762277B2 (ja) | 2000-09-29 | 2006-04-05 | キヤノン株式会社 | 磁気記録媒体及びその製造方法 |
JP3861197B2 (ja) | 2001-03-22 | 2006-12-20 | 株式会社東芝 | 記録媒体の製造方法 |
JP3793040B2 (ja) | 2001-05-09 | 2006-07-05 | 株式会社東芝 | 記録媒体およびその製造方法 |
US6579590B2 (en) | 2001-11-16 | 2003-06-17 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally-assisted magnetic recording disk with multilayered thermal barrier |
US6944101B2 (en) * | 2002-06-24 | 2005-09-13 | Seagate Technology Llc | Recording pole for delivering coincident heat and magnetic field |
US7412143B2 (en) * | 2002-06-28 | 2008-08-12 | Seagate Technology Llc | Heat assisted magnetic recording with heat profile shaping |
WO2004032118A1 (en) * | 2002-09-30 | 2004-04-15 | Seagate Technology Llc | Planar waveguide for heat assisted magnetic recording |
US8345374B2 (en) * | 2003-05-29 | 2013-01-01 | Seagate Technology, Llc | Patterned media for heat assisted magnetic recording |
KR100571812B1 (ko) * | 2003-07-19 | 2006-04-17 | 삼성전자주식회사 | 패턴된 자기 기록 매체 및 그 제조방법 |
US7158346B2 (en) * | 2003-12-23 | 2007-01-02 | Seagate Technology Llc | Heat assisted magnetic recording film including superparamagnetic nanoparticles dispersed in an antiferromagnetic or ferrimagnetic matrix |
JP2005243186A (ja) * | 2004-02-27 | 2005-09-08 | Tdk Corp | 磁気記録再生装置及び磁気記録媒体 |
US7521137B2 (en) * | 2005-01-12 | 2009-04-21 | Seagate Technology Llc | Patterned thin films and use of such films as thermal control layers in heat assisted magnetic recording media |
US7869309B2 (en) * | 2005-08-11 | 2011-01-11 | Seagate Technology Llc | Dual wire integrated WAMR/HAMR writing head |
-
2005
- 2005-01-12 US US11/033,936 patent/US7521137B2/en active Active
- 2005-12-28 JP JP2005378275A patent/JP4206406B2/ja not_active Expired - Fee Related
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WO2008056467A1 (fr) * | 2006-11-09 | 2008-05-15 | Sharp Kabushiki Kaisha | Support d'enregistrement magnétique, appareil d'enregistrement/reproduction magnétique et procédé d'enregistrement/reproduction magnétique |
JP5567000B2 (ja) * | 2009-03-23 | 2014-08-06 | 昭和電工株式会社 | 熱アシスト磁気記録媒体 |
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JP2012212496A (ja) * | 2011-03-18 | 2012-11-01 | Seiko Instruments Inc | 磁気記録媒体 |
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US12091743B2 (en) | 2020-09-03 | 2024-09-17 | Jx Advanced Metals Corporation | Sputtering target, manufacturing method therefor, and manufacturing method for magnetic recording medium |
Also Published As
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JP4206406B2 (ja) | 2009-01-14 |
KR100826032B1 (ko) | 2008-04-28 |
US20060154110A1 (en) | 2006-07-13 |
US7521137B2 (en) | 2009-04-21 |
KR20060082396A (ko) | 2006-07-18 |
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