Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films

Details Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films

2009-01-19

arxiv.org/abs/0901.2671v1

Physics

Condensed Matter

Materials Science

4 pages, 5 figures

Scientific paper

We raise the possibility that the chiral degeneracy of the magnons in ultrathin films can be lifted due to the presence of Dzyaloshinskii-Moriya interactions. By using simple symmetry arguments, we discuss under which conditions such a chiral asymmetry occurs. We then perform relativistic first principles calculations for an Fe monolayer on W(110) and explicitly reveal the asymmetry of the spin-wave spectrum in case of wave-vectors parallel to the (001) direction. Furthermore, we quantitatively interpret our results in terms of a simplified spin-model by using calculated Dzyaloshinskii-Moriya vectors. Our theoretical prediction should inspire experiments to explore the asymmetry of spin-waves, with a particular emphasis on the possibility to measure the Dzyaloshinskii-Moriya interactions in ultrathin films.

Affiliated with

Also associated with

No associations

Rating

Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films 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 Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-566019