Magnon-Phonon Dynamics in Multidimensional Antiferromagnetic Oxides

Yogendra Limbu; Michael E Flatté; Durga Paudyal

doi:10.48550/arxiv.2609.20616

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Magnon-Phonon Dynamics in Multidimensional Antiferromagnetic Oxides

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Magnon-Phonon Dynamics in Multidimensional Antiferromagnetic Oxides

Yogendra Limbu, Michael E Flatté and Durga Paudyal

arXiv

09/17/2026

DOI: 10.48550/arxiv.2609.20616

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Preprint (Author's original) This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Antiferromagnetic oxides offer a compelling paradigm for magnonics. Combining ab initio and spin Hamiltonian modeling, we map Cr2O3 from bulk to monolayer limits, verifying stability via phonon spectra. Contrary to previously predicted half-metallic ferromagnetic monolayer phases, we conclusively demonstrate that monolayer and bilayer configurations preserve an antiferromagnetic semiconductor ground state despite systematic gap narrowing. Intersecting magnon and phonon branches drive strong hybridization, establishing low-dimensional Cr2O3 as an ideal platform for quantum spintronics.

Physics - Materials Science

Details

Title: Subtitle: Magnon-Phonon Dynamics in Multidimensional Antiferromagnetic Oxides
Creators: Yogendra Limbu
Michael E Flatté
Durga Paudyal
Resource Type: Preprint
Publication Details: arXiv
DOI: 10.48550/arxiv.2609.20616
ISSN: 2331-8422
Publisher: arXiv
Language: English
Date posted: 09/17/2026
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9985230923202771

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