Title :
Micromagnetic analysis of a magnetic domain wall in 2-d and 3-d nanocontacts
Author :
Komine, Takashi ; Takahashi, Tomohiro ; Ishii, Satoshi ; Sugita, Ryuji ; Muranoi, Tetsuo ; Hasegawa, Yasuhiro
Author_Institution :
Dept. of Media & Telecommun. Eng., Ibaraki Univ., Japan
Abstract :
We have performed micromagnetic calculations of magnetic domain walls in two-dimensional (2-D) and three-dimensional (3-D) nanocontacts and estimate the domain wall widths. The magnetic domain wall in a 3-D nanocontact is smaller than that in a 2-D nanocontact due to the larger magnetic volume available to pin the magnetization in the antiparallel configuration of the electrodes. Therefore, 3-D nanocontacts are more suitable than 2-D nanocontacts for domain wall confinement and large magnetoresistance effects.
Keywords :
magnetic domain walls; magnetisation; magnetoresistance; micromagnetics; nanocontacts; nanostructured materials; 2D nanocontact; 3D nanocontact; antiparallel configuration; domain wall confinement; domain wall width; electrodes; exchange interactions; magnetic domain wall; magnetoresistance effect; micromagnetic analysis; nanostructured materials; numerical analysis; Electrodes; Magnetic analysis; Magnetic confinement; Magnetic domain walls; Magnetic domains; Magnetization; Magnetoresistance; Micromagnetics; Nanocontacts; Two dimensional displays; Exchange interactions; magnetic domains; magnetoresistance (MR); nanostructured materials; numerical analysis;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854753
