Love waves propagation in layered waveguide structures including flexomagneticity/flexoelectricity and micro-inertia effects

Abstract

A gradient-type theory with flexomagnetic/flexoelectric and micro-inertia effects is used to study Love wave propagation in the layered magneto-electro-elastic structures. Two waveguide structures are considered: flexo-piezoelectric layer deposited on the piezomagnetic half-space and flexo-piezomagnetic layer resting on the piezoelectric half-space. The dispersion equations are numerically investigated for the magneto-electrically open and short circuit conditions. It is concluded that the profile of dispersion curves depends on the material composition of the waveguide structure, the guiding layer thickness, and the relative values of flexomagnetic/flexoelectric coefficients and the micro-inertia length-scale parameter. The obtained results are helpful for mathematical modeling of new small-sized acoustic devices.

Keywords:

• Love wave propagation
• strain gradient theory
• flexomagneticity
• flexoelectricity
• micro-inertia effect
• dispersion relation

Disclosure statement

The authors report there are no competing interests to declare.

Additional information

Funding

This research was supported by the Slovak Research and Development Agency (grant number APVV-18-0004); by the Ministry of Education, Science, Research and Sport of the Slovak Republic (Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky) (grant number VEGA-2/0061/20) and by the National Academy of Sciences of Ukraine (grant number 0121U100456).