We predicted the existence of a novel quasiparticle called electroacoustic magnon which is a mixture of acoustic phonons, optical phonons, and magnons. This article reveals that the resonances of magnetoelectric responses of multiferroics is subject to change by varying the the frequency of applied magnetic field as well as the size and shape of the material which helps experimentalists and engineers to optimize magnetoelectric devices.
This is a pioneering work that studies the dynamical magnetoelectric couplings in single phase multiferroics. It provides potentials to design novel devices, specially storage media and memory devices.
Phys Rev Lett 2019 Mar;122(9):097601
Physics Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, USA.
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