Magnon gap excitations in van der Waals antiferromagnet MnPSe3
Magneto-spectroscopy methods have been employed to study the zero-wavevector magnon excitations in MnPSe 3 . Experiments carried out as a function of temperature and the applied magnetic field show that two low-energy magnon branches of MnPSe 3 in its antiferromagnetic phase are gapped. The observat...
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Veröffentlicht in: | Scientific reports 2024-07, Vol.14 (1), p.17502-6, Article 17502 |
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Hauptverfasser: | , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Magneto-spectroscopy methods have been employed to study the zero-wavevector magnon excitations in MnPSe
3
. Experiments carried out as a function of temperature and the applied magnetic field show that two low-energy magnon branches of MnPSe
3
in its antiferromagnetic phase are gapped. The observation of two low-energy magnon gaps (at 1.70 ± 0.05 meV and 0.09 ± 0.01 meV) implies that MnPSe
3
is a biaxial antiferromagnet. A relatively strong out-of-plane anisotropy imposes the spin alignment to be in-plane whereas the spin directionality within the plane is governed by a factor of 2.5 × 10
−3
weaker in-plane anisotropy. |
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ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/s41598-024-67356-4 |