Crossover in the Structure Between Bloch and Linear Domain Walls

Details Crossover in the Structure Between Bloch and Linear Domain Walls Crossover in the Structure Between Bloch and Linear Domain Walls

2004-02-28

arxiv.org/abs/cond-mat/0403006v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

Near the Curie temperature of a ferromagnet the form of a domain wall changes from the Bloch type to (asymptotically) the linear Zhirnov wall. Unlike the simple 180 degree rotation of the magnetization vector in a Bloch wall, its absolute value diminishes near the center of the wall. This leads to a decrease of the total transverse component of the exchange field inside the wall and to an increase of mistracking of the spins of the electrons traversing the wall. This mechanism may help explain large magnetoresistance of domain walls in thin nanowires, as the Curie temperatures of low-dimensional nanostructures are known to be lower than in bulk ferromagnets while the anisotropy energy stays virtually unchanged.

Affiliated with

Also associated with

No associations

Rating

Crossover in the Structure Between Bloch and Linear Domain Walls does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Crossover in the Structure Between Bloch and Linear Domain Walls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crossover in the Structure Between Bloch and Linear Domain Walls will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-396599