Thermal properties of one-dimensional piezoelectric phononic crystal

Arafa H. Aly (), Ahmed Nagaty and Ahmed Mehaney
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Arafa H. 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 By using the transfer matrix method, we theoretically studied the propagation of a longitudinal acoustic wave in a one-dimensional phononic crystal (PnC) that contains a piezoelectric material as a defect layer. A pass band can be generated and controlled in the middle of the band gap. The pass band position is tuned by applying an external electric field. The position of the pass band inside the band gap is tuned by the changing of temperature. We introduce a comparison between temperature effects on two piezoelectric materials, PZT-5H and 0.7 PMN-0.3PT inside a PnC structure. Moreover, the pass band is shifted towards high or low frequencies by temperature decrement or increment, respectively. The simulated results provide a valuable guidance for PnC applications such as acoustic switch and temperature sensor.

Date: 2018
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Citations: View citations in EconPapers (1)

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DOI: 10.1140/epjb/e2018-90297-y

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