Altermagnetic ruthenium oxide RuO₂ crystallizes with P4₂/mnm symmetry. Here we discuss the lattice dynamics of this structure. We show and discuss the phonon dispersion and density of states. The phonon dispersion curves contain several Dirac nodal lines and highly degenerate Dirac points. We present the characteristic frequencies and their irreducible representations at the Γ point. Theoretically obtained frequencies of the Raman active modes nicely reproduce the ones reported experimentally.
No takes yet. Share an insight, caveat, or question.
Basak et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: