JP4732211B2 - 磁気記録装置 - Google Patents
磁気記録装置 Download PDFInfo
- Publication number
- JP4732211B2 JP4732211B2 JP2006088349A JP2006088349A JP4732211B2 JP 4732211 B2 JP4732211 B2 JP 4732211B2 JP 2006088349 A JP2006088349 A JP 2006088349A JP 2006088349 A JP2006088349 A JP 2006088349A JP 4732211 B2 JP4732211 B2 JP 4732211B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic recording
- recording
- electric field
- head
- 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
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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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- 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
- G11B11/08—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 electric charge or by variation of electric resistance or capacitance
-
- 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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Description
Claims (5)
- 磁気記録層として電界の印加によって保磁力が減少する磁性材料を用いた磁気記録媒体と、
前記磁気記録媒体を駆動するための駆動部と、
前記磁気記録層の記録領域に磁化情報を書き込むヘッドと、
前記ヘッドを前記磁気記録媒体の所望位置に位置決めするためのアクチュエータとを備え、
前記ヘッドは、
前記磁気記録媒体に前記電界を印加するための電界印加手段と、
前記磁気記録媒体に磁界を印加するための磁界印加手段とを備え、
前記磁気記録媒体の磁気記録層に前記電界印加手段から直流電界を印加しながら、前記磁界印加手段から交流磁界を印加して磁化情報を書き込むこと、又は前記磁気記録媒体の磁気記録層に前記電界印加手段から交流電界を印加しながら、前記磁界印加手段から直流磁界を印加して磁化情報を書き込むことを特徴とする磁気記録装置。 - 請求項1記載の磁気記録装置において、前記電界印加手段は前記記録領域に磁界を印加するための一対の磁界印加手段の間に設けられていることを特徴とする磁気記録装置。
- 請求項1記載の磁気記録装置において、前記磁性材料は磁性半導体材料であることを特徴とする磁気記録装置。
- 請求項1記載の磁気記録装置において、前記磁性材料はMnをドープしたGaAs化合物、MnをドープしたInAs化合物、GaN又はZnOを主成分とする材料であることを特徴とする磁気記録装置。
- 請求項1記載の磁気記録装置において、前記電界印加手段は前記記録領域に磁界を印加するための一対の磁界印加手段の間に設けられている電極であることを特徴とする磁気記録装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006088349A JP4732211B2 (ja) | 2006-03-28 | 2006-03-28 | 磁気記録装置 |
US11/698,929 US7508625B2 (en) | 2006-03-28 | 2007-01-29 | Magnetic recording device |
US11/712,395 US7436613B2 (en) | 2006-03-28 | 2007-03-01 | Magnetic recording device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006088349A JP4732211B2 (ja) | 2006-03-28 | 2006-03-28 | 磁気記録装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007265512A JP2007265512A (ja) | 2007-10-11 |
JP4732211B2 true JP4732211B2 (ja) | 2011-07-27 |
Family
ID=38558516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006088349A Expired - Fee Related JP4732211B2 (ja) | 2006-03-28 | 2006-03-28 | 磁気記録装置 |
Country Status (2)
Country | Link |
---|---|
US (2) | US7508625B2 (ja) |
JP (1) | JP4732211B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4840041B2 (ja) * | 2006-09-20 | 2011-12-21 | 株式会社日立製作所 | 電界印加磁気記録方式および記録再生装置 |
JP5226432B2 (ja) * | 2008-08-27 | 2013-07-03 | エイチジーエスティーネザーランドビーブイ | 磁気ヘッド |
KR100927906B1 (ko) * | 2008-10-02 | 2009-11-23 | (주)코셈 | 전자빔을 이용한 데이터 기록장치 및 전자빔을 이용한 데이터 기록방법 |
US8416538B2 (en) * | 2011-07-29 | 2013-04-09 | Seagate Technology Llc | Shaped shield for a magnetoresistive head |
JP5771788B2 (ja) * | 2011-11-18 | 2015-09-02 | 国立大学法人秋田大学 | 電界書込み型磁気記録装置 |
US8724434B2 (en) | 2012-03-23 | 2014-05-13 | Tdk Corporation | Magnetic recording system and magnetic recording device |
JP5902115B2 (ja) * | 2013-03-22 | 2016-04-13 | 株式会社東芝 | 磁気記録媒体、及びその製造方法 |
JP6285785B2 (ja) | 2013-06-10 | 2018-02-28 | 昭和電工株式会社 | 垂直記録媒体および垂直記録再生装置 |
US9520175B2 (en) | 2013-11-05 | 2016-12-13 | Tdk Corporation | Magnetization controlling element using magnetoelectric effect |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001283402A (ja) * | 2000-03-30 | 2001-10-12 | Toshiba Corp | 磁気記録装置及び磁気記録媒体 |
JP2004055866A (ja) * | 2002-07-22 | 2004-02-19 | Univ Tohoku | 不揮発性固体磁気メモリ、不揮発性固体磁気メモリの保磁力制御方法、及び不揮発性固体磁気メモリの記録方法 |
JP2006139854A (ja) * | 2004-11-12 | 2006-06-01 | Sony Corp | 情報記録装置、情報記録方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08255707A (ja) | 1995-03-17 | 1996-10-01 | Toshiba Corp | 磁性体、およびこれを用いた磁気記録媒体 |
US6741524B2 (en) * | 1999-12-28 | 2004-05-25 | Kabushiki Kaisha Toshiba | Thermally-assisted magnetic recording and reproducing device having an electron beam thermal source |
JP2003091801A (ja) | 2001-09-17 | 2003-03-28 | Toshiba Corp | 磁気記録装置及び磁気記録媒体 |
KR100429843B1 (ko) * | 2001-09-22 | 2004-05-03 | 삼성전자주식회사 | 전자 방출 및 상변화물질을 이용한 고밀도정보기록/재생방법 및 이를 응용한 정보저장장치 및 이에사용되는 미디어 |
KR100438833B1 (ko) * | 2001-12-06 | 2004-07-05 | 삼성전자주식회사 | 전하를 이용한 정보저장장치 |
JP4120268B2 (ja) * | 2002-05-27 | 2008-07-16 | 株式会社日立製作所 | 情報記録媒体および情報記録方法 |
JP4017104B2 (ja) * | 2002-07-09 | 2007-12-05 | パイオニア株式会社 | 誘電体記録再生ヘッド及びトラッキング方法 |
US20050157597A1 (en) * | 2003-05-29 | 2005-07-21 | Seagate Technology Llc | Optimized media grain packing fraction for bit patterned magnetic recording media |
JP4317503B2 (ja) * | 2004-08-25 | 2009-08-19 | 株式会社日立製作所 | 磁化情報記録方法及び磁気記録再生装置 |
US7190539B1 (en) * | 2004-12-29 | 2007-03-13 | Storage Technology Corporation | Magnetic recorder having carbon nanotubes embedded in anodic alumina for emitting electron beams to perform heat-assisted magnetic recording |
US20060212978A1 (en) * | 2005-03-15 | 2006-09-21 | Sarah Brandenberger | Apparatus and method for reading bit values using microprobe on a cantilever |
US7773492B2 (en) * | 2006-04-18 | 2010-08-10 | Micron Technology, Inc. | Method and apparatus providing high density data storage |
JP4840041B2 (ja) * | 2006-09-20 | 2011-12-21 | 株式会社日立製作所 | 電界印加磁気記録方式および記録再生装置 |
-
2006
- 2006-03-28 JP JP2006088349A patent/JP4732211B2/ja not_active Expired - Fee Related
-
2007
- 2007-01-29 US US11/698,929 patent/US7508625B2/en not_active Expired - Fee Related
- 2007-03-01 US US11/712,395 patent/US7436613B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001283402A (ja) * | 2000-03-30 | 2001-10-12 | Toshiba Corp | 磁気記録装置及び磁気記録媒体 |
JP2004055866A (ja) * | 2002-07-22 | 2004-02-19 | Univ Tohoku | 不揮発性固体磁気メモリ、不揮発性固体磁気メモリの保磁力制御方法、及び不揮発性固体磁気メモリの記録方法 |
JP2006139854A (ja) * | 2004-11-12 | 2006-06-01 | Sony Corp | 情報記録装置、情報記録方法 |
Also Published As
Publication number | Publication date |
---|---|
US7508625B2 (en) | 2009-03-24 |
US7436613B2 (en) | 2008-10-14 |
US20070230007A1 (en) | 2007-10-04 |
US20070230006A1 (en) | 2007-10-04 |
JP2007265512A (ja) | 2007-10-11 |
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