Open AccessNon-collinear ground state and stable bimerons from four-spin chiral interactions in D3h magnet
Author(s) -
Gulnaz Rakhmanova,
А. Н. Осипов,
Denis Ilin,
I V Shushakova,
I. V. Iorsh
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2015/1/012118
Subject(s) - skyrmion , condensed matter physics , ground state , physics , magnet , spin (aerodynamics) , symmetry (geometry) , vortex , state (computer science) , chiral symmetry , quantum mechanics , geometry , mathematics , algorithm , thermodynamics , quark
We demonstrate that four-spin interactions in crystals with D 3h point group of symmetry can cause a phase transition from a collinear state to a non-collinear magnetic ground state (such as magnetic vortices or magnetic skyrmions), while all anti-symmetric chiral terms are forbidden by symmetry in such crystals. Moreover, D 3h point group rather common among two dimensional magnets. Taking into account possible four-spin chiral exchange interactions is important for understanding noncollinear magnetic order in these systems. We also address a possible stabilization of bimerons by the same contribution.