Exploring non-collinear magnetic ground states in tetragonal Mn$_2$-based Heusler compounds
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909563284881408 |
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| author | Cardenas-Gamboa, Jorge Lesne, Edouard Ernst, Arthur Vergniory, Maia G. McClarty, Paul Felser, Claudia |
| author_facet | Cardenas-Gamboa, Jorge Lesne, Edouard Ernst, Arthur Vergniory, Maia G. McClarty, Paul Felser, Claudia |
| contents | Heusler compounds constitute a large family of intermetallic materials notable for their wide variety of properties such as magnetism, multi-ferroicity, nontrivial band topology, superconductivity and so on. Among their magnetic properties one finds a tremendous variety of states from simple ferromagnetism to skyrmion crystals. In most Mn$_2$-based Heuslers the magnetism is typically collinear. An exception is Mn$_2$RhSn in which an unusual ground state with magnetic canting and a temperature-induced spin re-orientation into the collinear ferrimagnetic phase has been reported from experiments. In this work, we employ first-principles calculations and mean field theory to provide a simple account of the unusual phase diagram in this magnet. We also highlight Weyl points in the computed band structure of \mrs\ and the resulting Fermi arcs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_02166 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Exploring non-collinear magnetic ground states in tetragonal Mn$_2$-based Heusler compounds Cardenas-Gamboa, Jorge Lesne, Edouard Ernst, Arthur Vergniory, Maia G. McClarty, Paul Felser, Claudia Materials Science Heusler compounds constitute a large family of intermetallic materials notable for their wide variety of properties such as magnetism, multi-ferroicity, nontrivial band topology, superconductivity and so on. Among their magnetic properties one finds a tremendous variety of states from simple ferromagnetism to skyrmion crystals. In most Mn$_2$-based Heuslers the magnetism is typically collinear. An exception is Mn$_2$RhSn in which an unusual ground state with magnetic canting and a temperature-induced spin re-orientation into the collinear ferrimagnetic phase has been reported from experiments. In this work, we employ first-principles calculations and mean field theory to provide a simple account of the unusual phase diagram in this magnet. We also highlight Weyl points in the computed band structure of \mrs\ and the resulting Fermi arcs. |
| title | Exploring non-collinear magnetic ground states in tetragonal Mn$_2$-based Heusler compounds |
| topic | Materials Science |
| url | https://arxiv.org/abs/2504.02166 |