Spin-transfer torques in anti-ferromagnetic metals from first principles

Details Spin-transfer torques in anti-ferromagnetic metals from first principles Spin-transfer torques in anti-ferromagnetic metals from first principles

2007-08-16

arxiv.org/abs/0708.2143v2

Physical Review Letters, 100, 226602 (2008)

Physics

Condensed Matter

Materials Science

The paper has substantially been rewritten, 4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.100.226602

In spite of the absence of a macroscopic magnetic moment, an anti-ferromagnet is spin-polarized on an atomic scale. The electric current passing through a conducting anti-ferromagnet is polarized as well, leading to spin-transfer torques when the order parameter is textured, such as in anti-ferromagnetic non-collinear spin valves and domain walls. We report a first principles study on the electronic transport properties of anti-ferromagnetic systems. The current-induced spin torques acting on the magnetic moments are comparable with those in conventional ferromagnetic materials, leading to measurable angular resistances and current-induced magnetization dynamics. In contrast to ferromagnets, spin torques in anti-ferromagnets are very nonlocal. The torques acting far away from the center of an anti-ferromagnetic domain wall should facilitate current-induced domain wall motion.

Affiliated with

Also associated with

No associations

Rating

Spin-transfer torques in anti-ferromagnetic metals from first principles 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 Spin-transfer torques in anti-ferromagnetic metals from first principles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-transfer torques in anti-ferromagnetic metals from first principles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-331552