| Presentation | 2017-12-08 Micromagnetic model analysis of MAMR recording head (2) Ryo Itagaki, Yasushi Kanai, Simon Greaves, Hiroaki Muraoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A micromagnetic model analysis of spin-torque oscillators (STOs) was carried out. First, the conditions for stable oscillation were determined using a uniform, in-gap field applied to the STO in place of the field from a write head. It was found that the rise time (0-90%) of the in-gap field greatly affected the STO oscillation, i.e. a shorter rise time gave more stable STO oscillation. We also investigated STOs in the write head gap and found that the STO oscillation was dependent on the rise time of the in-gap field. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Microwave-Assisted Magnetic Recording (MAMR) / Spin Torque Oscillator (STO) / Write Heads / Rise Time of Applied Field / Micromagnetic Simulations |
| Paper # | MR2017-39 |
| Date of Issue | 2017-11-30 (MR) |
| Conference Information | |
| Committee | MR / ITE-MMS |
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| Conference Date | 2017/12/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ehime Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing, etc. |
| Chair | Yoshihiro Okamoto(Ehime Univ.) / Norihiko Ishii(NHK) |
| Vice Chair | |
| Secretary | (Kogakuin Univ.) / (AIST) |
| Assistant | Tazumi Nagasawa(Toshiba) / Shuhei 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 model analysis of MAMR recording head (2) |
| Sub Title (in English) | Oscillation of STO vs. rise time of external field |
| Keyword(1) | Microwave-Assisted Magnetic Recording (MAMR) |
| Keyword(2) | Spin Torque Oscillator (STO) |
| Keyword(3) | Write Heads |
| Keyword(4) | Rise Time of Applied Field |
| Keyword(5) | Micromagnetic Simulations |
| 1st Author's Name | Ryo Itagaki |
| 1st Author's Affiliation | Niigata Institute of Technology(Niigata Inst. Tech.) |
| 2nd Author's Name | Yasushi Kanai |
| 2nd Author's Affiliation | Niigata Institute of Technology(Niigata Inst. Tech.) |
| 3rd Author's Name | Simon Greaves |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Hiroaki Muraoka |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2017-12-08 |
| Paper # | MR2017-39 |
| Volume (vol) | vol.117 |
| Number (no) | MR-338 |
| Page | pp.pp.81-86(MR), |
| #Pages | 6 |
| Date of Issue | 2017-11-30 (MR) |