Mean-field description of skyrmion lattice in hexagonal frustrated antiferromagnets
Oleg I. Utesov
Abstract
A simple mean-field description of frustrated antiferromagnets on hexagonal lattices, aimed to describe the high-temperature part of the temperature-magnetic field phase diagram, is proposed. It is shown that an interplay between modulation vector symmetry, Zeeman energy, and magnetodipolar interaction leads to stabilization of the triple-$Q$ skyrmion lattice in a certain region of the phase diagram. The corresponding analytical expressions for phase boundaries are derived. The possible relevance to the high-temperature part of the ${\mathrm{Gd}}_{2}{\mathrm{PdSi}}_{3}$ phase diagram is discussed.
Topics & Concepts
Phase diagramSkyrmionCondensed matter physicsZeeman effectLattice (music)Zeeman energyPhysicsHexagonal latticeHexagonal crystal systemAntiferromagnetismPhase (matter)Magnetic fieldQuantum mechanicsChemistryCrystallographyAcousticsPhysics of Superconductivity and MagnetismMagnetic properties of thin filmsAdvanced Condensed Matter Physics