摘要
We performed micromagnetic modeling on moving multiple data bits (2-64 bits) in permalloy (Ni80Fe20) cylindrical nanotubes (PCNTs) and numerically investigated the domain-wall movement, which relies on the applied current, the Gilbert damping factor α and radii ratio β. It was found that current-driven multiple transverse domain walls (TDWs) motion in nanotubes with an outer diameter below 25 nm and β > 0.33) was characteristic of an exceptional massless mobility. We observed that the velocity of TDWs confined in nanotubes, which was in proportion to the applied current, depended mainly on the sizes of the tubes, and α but was independent of the number of TDWs. The obtained results offer a way to design the magnetization structures for the DW-based devices by controlling the nanotube geometric and material parameters.
| 原文 | English |
|---|---|
| 文章編號 | 6971646 |
| 期刊 | IEEE Transactions on Magnetics |
| 卷 | 50 |
| 發行號 | 11 |
| DOIs | |
| 出版狀態 | Published - 2014 十一月 1 |
指紋
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
引用此文
}
Micromagnetic modeling on current-induced multiple domain-wall motion in permalloy nanotubes. / Wu, Feng Sheng; Horng, Lance; Kao, Yee Mou; Wu, Jong Ching.
於: IEEE Transactions on Magnetics, 卷 50, 編號 11, 6971646, 01.11.2014.研究成果: Article
TY - JOUR
T1 - Micromagnetic modeling on current-induced multiple domain-wall motion in permalloy nanotubes
AU - Wu, Feng Sheng
AU - Horng, Lance
AU - Kao, Yee Mou
AU - Wu, Jong Ching
PY - 2014/11/1
Y1 - 2014/11/1
N2 - We performed micromagnetic modeling on moving multiple data bits (2-64 bits) in permalloy (Ni80Fe20) cylindrical nanotubes (PCNTs) and numerically investigated the domain-wall movement, which relies on the applied current, the Gilbert damping factor α and radii ratio β. It was found that current-driven multiple transverse domain walls (TDWs) motion in nanotubes with an outer diameter below 25 nm and β > 0.33) was characteristic of an exceptional massless mobility. We observed that the velocity of TDWs confined in nanotubes, which was in proportion to the applied current, depended mainly on the sizes of the tubes, and α but was independent of the number of TDWs. The obtained results offer a way to design the magnetization structures for the DW-based devices by controlling the nanotube geometric and material parameters.
AB - We performed micromagnetic modeling on moving multiple data bits (2-64 bits) in permalloy (Ni80Fe20) cylindrical nanotubes (PCNTs) and numerically investigated the domain-wall movement, which relies on the applied current, the Gilbert damping factor α and radii ratio β. It was found that current-driven multiple transverse domain walls (TDWs) motion in nanotubes with an outer diameter below 25 nm and β > 0.33) was characteristic of an exceptional massless mobility. We observed that the velocity of TDWs confined in nanotubes, which was in proportion to the applied current, depended mainly on the sizes of the tubes, and α but was independent of the number of TDWs. The obtained results offer a way to design the magnetization structures for the DW-based devices by controlling the nanotube geometric and material parameters.
UR - http://www.scopus.com/inward/record.url?scp=84915745502&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84915745502&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2014.2325022
DO - 10.1109/TMAG.2014.2325022
M3 - Article
AN - SCOPUS:84915745502
VL - 50
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 11
M1 - 6971646
ER -