An effective field theory of magneto-elasticity

  title={An effective field theory of magneto-elasticity},
  author={Shashin Pavaskar and Riccardo Penco and Ira Z. Rothstein},
  journal={SciPost Physics},
We utilize the coset construction to derive the effective field theory of magnon-phonon interactions in (anti)-ferromagnetic and ferrimagnetic insulating materials. The action is used to calculate the equations of motion which generalize the Landau-Lifshitz and stress equations to allow for magneto-acoustic couplings to all orders in the fields at lowest order in the derivative expansion. We also include the symmetry breaking effects due to Zeeman, and Dzyaloshinsky-Moriya interactions. This… 
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