| Presentation | 2016-06-10 Micromagnetic simulation of STO for microwave-assisted magnetic recording (4) Yuuki Tabuse, Yasushi Kanai, Kazuetsu Yoshida, Simon Greaves, Hiroaki Muraoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Micromagnetic analysis was carried out for the spin-torque oscillator (STO) used for microwave-assisted magnetic recording (MAMR). It was difficult to reduce the optimum injected current density (Jopt) by optimizing the material characteristics and the write head structure significantly affected Jopt. A tilted main pole – trailing shield gap with a tilted STO gave a smaller Jopt than a write head with the STO perpendicular to the medium. We also investigated various STO structures (cylinder and cuboid with and without a cut) and found that the cylinder had smaller Jopt and the models with cuts had unstable oscillations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave-assisted magnetic recording / spin-torque oscillator / write head / spin injected current / micromagnetic simulation |
| Paper # | MR2016-12 |
| Date of Issue | 2016-06-02 (MR) |
| Conference Information | |
| Committee | MR / ITE-MMS |
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| Conference Date | 2016/6/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Recording Systems, etc. |
| Chair | Yoshihiro Okamoto(Ehime Univ.) / Eiichi Miyashita(NHK) |
| Vice Chair | |
| Secretary | (AIST) / (Kogakuin Univ.) |
| Assistant | Kiwamu Kudo(Toshiba) / Syuhei Yoshida(Kinki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording / 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) | Micromagnetic simulation of STO for microwave-assisted magnetic recording (4) |
| Sub Title (in English) | Optimum injected current density of integrated STO vs. write head structure and head material characteristics |
| Keyword(1) | Microwave-assisted magnetic recording |
| Keyword(2) | spin-torque oscillator |
| Keyword(3) | write head |
| Keyword(4) | spin injected current |
| Keyword(5) | micromagnetic simulation |
| 1st Author's Name | Yuuki Tabuse |
| 1st Author's Affiliation | Niigata Institute of Technology(NIIT) |
| 2nd Author's Name | Yasushi Kanai |
| 2nd Author's Affiliation | Niigata Institute of Technology(NIIT) |
| 3rd Author's Name | Kazuetsu Yoshida |
| 3rd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 4th Author's Name | Simon Greaves |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 5th Author's Name | Hiroaki Muraoka |
| 5th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2016-06-10 |
| Paper # | MR2016-12 |
| Volume (vol) | vol.116 |
| Number (no) | MR-83 |
| Page | pp.pp.73-78(MR), |
| #Pages | 6 |
| Date of Issue | 2016-06-02 (MR) |