Magnon–Phonon Interactions

In this line of work, we use inelastic neutron and resonant X-ray scattering on itinerant antiferromagnets and correlated insulators to resolve how magnon branches hybridize with optical phonons. By quantifying dispersion renormalization, linewidth broadening and spectral-weight transfer, we build microscopic models that connect spin–lattice coupling to macroscopic transport properties.

A central question is when magnon–phonon coupling can be engineered to either enhance or suppress heat and spin currents in candidate magnonic and thermoelectric devices. I am particularly interested in systems where small structural or chemical changes produce qualitative shifts in the hybrid excitation spectrum.

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