| Presentation | 2019-07-19 Relation between conditions of dots and areal recording density in HDMR Naofumi Matsushima, Fumiko Akagi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Heated dot magnetic recording (HDMR), which is a new recording method combining heat assisted magnetic recording (HAMR) and bit patterned media (BPM), has been proposed to increase recording density of magnetic hard disk drives. In this study, the relationships between dispersion of dot size and position of the BPM, the Curie temperature and an areal recording density were investigated using micromagnetics simulation. As a result, when an average dot size is 8 nm, both bit and track pitches are 12 nm, the dispersions of dot diameter, dot position, and the Curie temperature are equal or lower than 2% , 1%, and 2%, respectively, for bit error rates (BERs) of on-track and adjacent track of 0. Then, the areal recording density is 4.48 Tbit/inch^2 |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Heat Assisted Magnetic Recording / Bit Patterned Media / Landau-Lifshitz-Bloch equation |
| Paper # | MRIS2019-13 |
| Date of Issue | 2019-07-12 (MRIS) |
| Conference Information | |
| Committee | MRIS / ITE-MMS |
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| Conference Date | 2019/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kogakuin Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Solid State Memory, Media, etc. |
| Chair | Satoshi Matsunuma(Maxell) / Akihiko Ishii(NHK) |
| Vice Chair | |
| Secretary | (Toshiba) / (Kindai Univ.) |
| Assistant | Ikuya Tagawa(Tohoku Inst. of Tech.) / Hiroko Arai(AIST) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Relation between conditions of dots and areal recording density in HDMR |
| Sub Title (in English) | |
| Keyword(1) | Heat Assisted Magnetic Recording |
| Keyword(2) | Bit Patterned Media |
| Keyword(3) | Landau-Lifshitz-Bloch equation |
| 1st Author's Name | Naofumi Matsushima |
| 1st Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 2nd Author's Name | Fumiko Akagi |
| 2nd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| Date | 2019-07-19 |
| Paper # | MRIS2019-13 |
| Volume (vol) | vol.119 |
| Number (no) | MRIS-136 |
| Page | pp.pp.31-36(MRIS), |
| #Pages | 6 |
| Date of Issue | 2019-07-12 (MRIS) |