Theoretical Investigation of the Magnetic Order in FeAs

Lyudmila V. Dobysheva; Anatoly K. Arzhnikov

doi:10.4028/www.scientific.net/SSP.190.11

Paper Titles

Preface, Committees and Sponsors

Ageing Phenomena in Two-Dimensional XY-Model
p.3

Functional-Integral Approach to the Investigation of the Spin-Spiral Magnetic Order and Phase Separation
p.7

Theoretical Investigation of the Magnetic Order in FeAs
p.11

Spin-Waves in Stoner Ferromagnetic Phase of a Two-Dimensional Electron System
p.15

Magnetic Excitations in Locally Non-Equilibrium Media
p.19

Field-Theory Description of Nonequilibrium Critical Dynamics for Spin Systems
p.23

Description of Substitutional Adsorption of Magnetic Ions on Metallic Surfaces with Formation of Monolayer Ferromagnetic Films Using the Spin-Density Functional Method
p.27

Non-Equilibrium Critical Dynamics of Ferromagnets with Long Range Correlated Defects
p.31

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Theoretical Investigation of the Magnetic Order in FeAs

Abstract:

The magnetic structure of the iron monoarsenide FeAs is studied using ﬁrst-principlescalculations. We consider the collinear and non-collinear (spin-spiral wave) magnetic orderingand magnetic anisotropy. It is analitically shown that a magnetic triaxial anisotropy resultsin a sum of two spin-spiral waves with opposite directions of wave vectors and diﬀerent spinamplitudes, so that the magnetic moments in two perpendicular directions do not equal eachother.