One-dimensional phononic crystals that incorporate a defective piezoelectric/piezomagnetic as a new sensor

Arafa Hussein Aly (), Ahmed Nagaty and Ahmed Mehaney
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Arafa Hussein Aly: TH-PPM Group, Physics Department, Faculty of Sciences, Beni-Suef University
Ahmed Nagaty: TH-PPM Group, Physics Department, Faculty of Sciences, Beni-Suef University
Ahmed Mehaney: TH-PPM Group, Physics Department, Faculty of Sciences, Beni-Suef University

The European Physical Journal B: Condensed Matter and Complex Systems, 2018, vol. 91, issue 10, 1-5

Abstract: Abstract In this paper, we have studied the propagation and localization of acoustic waves in a one-dimensional (1D) phononic crystal at the effects of both electric and magnetic fields. We focused on the sensing and measuring the electric and magnetic fields by adjusting the position of the transmitted peak (defect mode) inside the two piezoelectric/piezomagnetic defect layers (0.7 PMN-0.3PT/Terfenol-D). The defect mode is shifted towards the lower frequencies by applying electric and magnetic fields and towards the higher frequencies by opposing the field’s direction. The bigger the value of the applied field is the greater movement in the peak position is. In addition, our results revealed that the magnetic field has a bigger influence than the electric field on the position of the defect mode. Moreover, we studied such movement of the defect mode position by applying the electric and magnetic field simultaneously. These results can be used to improve and enhance piezoelectric and piezomagnetic energy harvesters.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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DOI: 10.1140/epjb/e2018-90347-6

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