Theoretical Investigation of the Magnetic Order in FeAs

Details Theoretical Investigation of the Magnetic Order in FeAs Theoretical Investigation of the Magnetic Order in FeAs

2011-09-09

arxiv.org/abs/1109.1924v1

Physics

Condensed Matter

Materials Science

5 pages, 2 figures This is a report to MISM 2011 (Moscow Aug 2011)

Scientific paper

The magnetic structure of the iron monoarsenide FeAs is studied using first-principles calculations. We consider the collinear and non-collinear (spin-spiral wave) magnetic ordering and magnetic anisotropy. It is analitically shown that a magnetic triaxial anisotropy results in a sum of two spin-spiral waves with opposite directions of wave vectors and different spin amplitudes, so that the magnetic moments in two perpendicular directions do not equal each other.

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