Write head field design for correcting transition curvature in heat assisted magnetic recording
In this paper, we present a method for correcting transition curvature in heat assisted magnetic recording. By appropriately varying the recording head field across the track width, straight transitions free of curvature can be created even with a circular thermal profile. Micromagnetic modeling stu...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2017-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4976733 |
| _version_ | 1818339628497764352 |
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| author | Jian-Gang (Jimmy) Zhu Hai Li |
| author_facet | Jian-Gang (Jimmy) Zhu Hai Li |
| author_sort | Jian-Gang (Jimmy) Zhu |
| collection | DOAJ |
| description | In this paper, we present a method for correcting transition curvature in heat assisted magnetic recording. By appropriately varying the recording head field across the track width, straight transitions free of curvature can be created even with a circular thermal profile. Micromagnetic modeling study has been performed to show the consequent signal-to-noise ratio enhancement and corresponding area density gain. Effect of less-than-optimum head field has been analyzed. |
| first_indexed | 2024-12-13T15:30:02Z |
| format | Article |
| id | doaj.art-d0624d1905974fc08449b1430cfe5d2c |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-13T15:30:02Z |
| publishDate | 2017-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-d0624d1905974fc08449b1430cfe5d2c2022-12-21T23:40:14ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056505056505-510.1063/1.4976733236791ADVWrite head field design for correcting transition curvature in heat assisted magnetic recordingJian-Gang (Jimmy) Zhu0Hai Li1Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USAData Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USAIn this paper, we present a method for correcting transition curvature in heat assisted magnetic recording. By appropriately varying the recording head field across the track width, straight transitions free of curvature can be created even with a circular thermal profile. Micromagnetic modeling study has been performed to show the consequent signal-to-noise ratio enhancement and corresponding area density gain. Effect of less-than-optimum head field has been analyzed.http://dx.doi.org/10.1063/1.4976733 |
| spellingShingle | Jian-Gang (Jimmy) Zhu Hai Li Write head field design for correcting transition curvature in heat assisted magnetic recording AIP Advances |
| title | Write head field design for correcting transition curvature in heat assisted magnetic recording |
| title_full | Write head field design for correcting transition curvature in heat assisted magnetic recording |
| title_fullStr | Write head field design for correcting transition curvature in heat assisted magnetic recording |
| title_full_unstemmed | Write head field design for correcting transition curvature in heat assisted magnetic recording |
| title_short | Write head field design for correcting transition curvature in heat assisted magnetic recording |
| title_sort | write head field design for correcting transition curvature in heat assisted magnetic recording |
| url | http://dx.doi.org/10.1063/1.4976733 |
| work_keys_str_mv | AT jiangangjimmyzhu writeheadfielddesignforcorrectingtransitioncurvatureinheatassistedmagneticrecording AT haili writeheadfielddesignforcorrectingtransitioncurvatureinheatassistedmagneticrecording |