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 |
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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) |
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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 |
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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 |
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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) |