Analysis of surface wave behavior in corrugated piezomagnetic layer resting on inhomogeneous half-space

ABSTRACT

This paper deals with propagation of Love type waves in a Piezomagnetic layer with corrugated boundaries overlying an inhomogeneous half-space. Inhomogeneity of elastic half-space is caused due to exponential variations in elastic parameters. Dispersion relations are obtained for magnetically open and short cases. Prominent effects of inhomogeneity, layer's width and corrugation on the phase velocity of considered wave are illustrated through graphs. Some particular cases are derived and exhibited through graphs. Also the influence of undulation parameter, elastic parameter, and piezomagnetic coefficient on phase velocity of considered wave has been marked separately. The present study finds its applications in designing and optimization of Love wave sensors and Seismic Acoustic Wave (SAW) devices. Findings may also be used for analytical study of wave propagation in piezomagnetic coupled structures.

KEYWORDS:

• Piezomagnetic
• love type waves
• corrugation
• inhomogeneity
• SAW devices

Acknowledgment

Authors are also grateful to Indian Institute of Technology (Indian School of Mines), Dhanbad, India for providing fellowship to Ms. Juhi Baroi and facilitating us with best research facilities.

Additional information

Funding

Authors convey their sincere thanks to Science and Engineering Research Board (Department of Science and Technology), New Delhi, India for providing financial assistance through SERB project No. YSS/2015/002057.