| Paper Abstract and Keywords |
| Presentation |
2018-07-06 15:45
Micromagnetic simulation of current-driven domain wall motion along nanowire with local magnetic field assistance
Mayumi Kawana, Mitsunobu Okuda, Norihiko Ishii, Yasuyoshi Miyamoto (NHK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A current-driven domain wall motion in magnetic nanowire with perpendicular anisotropy has been utilized in MRAM. We also believe it can contribute to realize ultra-high-speed storage, however, large current density is required to drive magnetic domain walls fast. In this study, in order to reduce the driving current, we estimated the current-driven domain wall velocity dependence of the applied magnetic field direction and strength from a micromagnetic simulation using a Landau–Lifshitz–Gilbert(LLG) equation with spin transfer torque term. The magnetic domain wall velocity was increased by use of adequate local magnetic field modulation. Our analyses indicate that in-plane component of the applied field is effective for fast domain wall driving. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Current Induced Domain Wall Motion / Magnetic Nanowire / Magnetic field assistance / Magnetic Memory / Magnetic Random Access Memory / / / |
| Reference Info. |
ITE Tech. Rep., vol. 42, no. 20, MMS2018-47, pp. 19-23, July 2018. |
| Paper # |
MMS2018-47 |
| Date of Issue |
2018-06-29 (MMS) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
IEICE-MRIS MMS |
| Conference Date |
2018-07-06 - 2018-07-06 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Waseda Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Solid State Memory, Media, etc. |
| Paper Information |
| Registration To |
MMS |
| Conference Code |
2018-07-MRIS-MMS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Micromagnetic simulation of current-driven domain wall motion along nanowire with local magnetic field assistance |
| Sub Title (in English) |
|
| Keyword(1) |
Current Induced Domain Wall Motion |
| Keyword(2) |
Magnetic Nanowire |
| Keyword(3) |
Magnetic field assistance |
| Keyword(4) |
Magnetic Memory |
| Keyword(5) |
Magnetic Random Access Memory |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Mayumi Kawana |
| 1st Author's Affiliation |
Japan broadcasting corporation (NHK) |
| 2nd Author's Name |
Mitsunobu Okuda |
| 2nd Author's Affiliation |
Japan broadcasting corporation (NHK) |
| 3rd Author's Name |
Norihiko Ishii |
| 3rd Author's Affiliation |
Japan broadcasting corporation (NHK) |
| 4th Author's Name |
Yasuyoshi Miyamoto |
| 4th Author's Affiliation |
Japan broadcasting corporation (NHK) |
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| Speaker |
Author-1 |
| Date Time |
2018-07-06 15:45:00 |
| Presentation Time |
25 minutes |
| Registration for |
MMS |
| Paper # |
MMS2018-47 |
| Volume (vol) |
vol.42 |
| Number (no) |
no.20 |
| Page |
pp.19-23 |
| #Pages |
5 |
| Date of Issue |
2018-06-29 (MMS) |