Abstract
Recently, a method of ultrafast polarization switching in ferroelectrics has been suggested. The basic idea of the method is to employ the effect of self-acceleration of polarization dynamics due to a resonator feedback field. This is the idea of principle whose efficiency is demonstrated by an Ising-type model in a transverse field. Of course, the practical realization of the method requires the choice of appropriate materials, which is a separate problem. For example, the standard order-disorder ferroelectrics with spatially symmetric double-well potentials cannot be used for this purpose since, because of the symmetry, they lack the transverse polarization. However, ferroelectrics with asymmetric potentials, possessing this polarization, can be used. Moreover, if the potential asymmetry, hence, the transverse polarization, could be regulated, e.g., by shear stress or shear strain, this could provide a tool for governing the process of polarization switching.
Highlights
The main goal of the paper [1] has been to attract attention to the possibility of accelerating the polarization switching in ferroelectrics by using the self-acceleration effect caused by the action of a resonator-cavity feedback field
The standard order-disorder ferroelectrics with spatially symmetric double-well potentials cannot be used for this purpose since, because of the symmetry, they lack the transverse polarization
If the potential asymmetry, the transverse polarization, could be regulated, e.g., by shear stress or shear strain, this could provide a tool for governing the process of polarization switching
Summary
The main goal of the paper [1] has been to attract attention to the possibility of accelerating the polarization switching in ferroelectrics by using the self-acceleration effect caused by the action of a resonator-cavity feedback field. The basic idea of the method is to employ the effect of self-acceleration of polarization dynamics due to a resonator feedback field. The standard order-disorder ferroelectrics with spatially symmetric double-well potentials cannot be used for this purpose since, because of the symmetry, they lack the transverse polarization.
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