Theoretical Investigation of the Magnetic Order in FeAs
Dobysheva Lyudmila V., Arzhnikov Anatoly K
TL;DR
This paper uses first-principles calculations to explore the complex magnetic ordering in FeAs, revealing how magnetic anisotropy influences spin-spiral structures and moment anisotropy.
Contribution
It provides a theoretical analysis of magnetic structures in FeAs, highlighting the role of magnetic anisotropy in non-collinear spin arrangements.
Findings
Magnetic triaxial anisotropy leads to combined spin-spiral waves.
Magnetic moments differ in perpendicular directions due to anisotropy.
The study offers insights into magnetic behavior of FeAs.
Abstract
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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Taxonomy
TopicsMagnetic properties of thin films · Iron-based superconductors research · Magnetic Properties and Applications