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arXiv · 2311.04099

Magnetism in AV3Sb5 (A = Cs, Rb, K): Complex Landscape of the Dynamical Magnetic Textures

Debjani Karmakar·Manuel Pereiro·Md. Nur Hasan·Ritadip Bharati·Johan Hellsvik·Anna Delin·Samir Kumar Pal·Anders Bergman·Shivalika Sharma·Igor Di Marco·Patrik Thunstrom·Peter M. Oppeneer·Olle Eriksson
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Abstract

We have investigated the dynamical magnetic properties of the V-based kagome stibnite compounds by combining the ab-initio calculated magnetic parameters of a spin Hamiltonian like inter-site exchange parameters, magnetocrystalline anisotropy and site projected magnetic moments, with full-fledged simulations of atomistic spin-dynamics. Our calculations reveal that in addition to a ferromagnetic order along the [001] direction, the system hosts a complex landscape of magnetic configurations comprised of commensurate and incommensurate spin-spirals along the [010] direction. The presence of such chiral magnetic textures may be the key to solve the mystery about the origin of the experimentally observed inherent breaking of the C6 rotational symmetry- and the time-reversal symmetry.

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Debjani Karmakar, Manuel Pereiro, Md. Nur Hasan, Ritadip Bharati, Johan Hellsvik, Anna Delin, Samir Kumar Pal, Anders Bergman, Shivalika Sharma, Igor Di Marco, Patrik Thunstrom, Peter M. Oppeneer, Olle Eriksson. 2023-11-07. Magnetism in AV3Sb5 (A = Cs, Rb, K): Complex Landscape of the Dynamical Magnetic Textures. https://doi.org/10.1103/physrevb.108.174413

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