Magnetic excitons in a suspended 2D antiferromagnetic membrane
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908730569785344 |
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| author | Wolff, Joanna L. P. Moczko, Loïc Thoraval, Jérémy Romeo, Michelangelo Bacq-Labreuil, Benjamin Berciaud, Stéphane Gloppe, Arnaud |
| author_facet | Wolff, Joanna L. P. Moczko, Loïc Thoraval, Jérémy Romeo, Michelangelo Bacq-Labreuil, Benjamin Berciaud, Stéphane Gloppe, Arnaud |
| contents | Layered magnetic and strongly correlated materials present a rich platform for condensed matter physics with intrinsic properties intertwined by magnetism and low-dimensionality. A suspended light-emitting 2D antiferromagnetic membrane forms a highly controllable hybrid system in which the interplay between spin ordering, optical and mechanical degrees of freedom can be uniquely explored. NiPS$_3$ hosts excitons responsible for a puzzling luminescence down to a few atomic layers, linked to its zigzag antiferromagnetic order. The nature of these excitons remains unclear. Here we report on the magnetic excitons of a suspended few-layer NiPS$_3$ membrane. We reveal nematic zigzag states and study the optical transitions induced by the magnon-mediated motion of the excitation in the magnetic lattice, resulting in magnon-dressed excitons. We observe a strain tuning of these emission lines, dependent on their microscopic origin, with rates that sign a strong localization of the magnetic excitons, fading with the number of magnon-mediated hops. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_20528 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic excitons in a suspended 2D antiferromagnetic membrane Wolff, Joanna L. P. Moczko, Loïc Thoraval, Jérémy Romeo, Michelangelo Bacq-Labreuil, Benjamin Berciaud, Stéphane Gloppe, Arnaud Mesoscale and Nanoscale Physics Layered magnetic and strongly correlated materials present a rich platform for condensed matter physics with intrinsic properties intertwined by magnetism and low-dimensionality. A suspended light-emitting 2D antiferromagnetic membrane forms a highly controllable hybrid system in which the interplay between spin ordering, optical and mechanical degrees of freedom can be uniquely explored. NiPS$_3$ hosts excitons responsible for a puzzling luminescence down to a few atomic layers, linked to its zigzag antiferromagnetic order. The nature of these excitons remains unclear. Here we report on the magnetic excitons of a suspended few-layer NiPS$_3$ membrane. We reveal nematic zigzag states and study the optical transitions induced by the magnon-mediated motion of the excitation in the magnetic lattice, resulting in magnon-dressed excitons. We observe a strain tuning of these emission lines, dependent on their microscopic origin, with rates that sign a strong localization of the magnetic excitons, fading with the number of magnon-mediated hops. |
| title | Magnetic excitons in a suspended 2D antiferromagnetic membrane |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2512.20528 |