2015/02/13 by Eugene M. Chudnovsky, Reem Jaafar
Materials Science · Physics and Astronomy · #Commutation #Electric field #Ferromagnetism #Magnetic Properties and Applications #Magnetic anisotropy #Magnetic field #Magnetic moment #Magnetic properties of thin films #Magnetization #Moment (physics) #Multiferroics and related materials #Symmetry (geometry) #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.4914529
7 pages, 5 figures
arxiv created 2015/02/13 · openalex publication_date 2015/03/12 · arxiv updated 2015/06/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We show that the magnetization of a torsional oscillator that, in addition to the magnetic moment also possesses an electrical polarization, can be switched by the electric field that ignites mechanical oscillations at the frequency comparable to the frequency of the ferromagnetic resonance. The 180° switching arises from the spin-rotation coupling and is not prohibited by the different symmetry of the magnetic moment and the electric field as in the case of a stationary magnet. Analytical equations describing the system have been derived and investigated numerically. Phase diagrams showing the range of parameters required for the switching have been obtained.