Temperature Sensitivity of Surface Phononic Crystals modes (SPnC) based on Ni Pillars array deposited on LiNBO3 | Talbi, Abdelkrim
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Temperature Sensitivity of Surface Phononic Crystals modes (SPnC) based on Ni Pillars array deposited on LiNBO3

Archive ouverte : Communication dans un congrès

Talbi, Abdelkrim | Boussatour, Ghizlane | Mazzamurro, Aurelien | Ghouila-Houri, Cécile | Boumatar, Olivier | Pernod, Philippe

Edité par HAL CCSD ; IEEE

International audience. This work focuses on the theoretical and experimental investigation of acoustic waves sensors based on 2D Surface Phononic Crystals (PnC). We investigated the temperature coefficient of frequency (TCF) for surface localized modes in 2D PnCs composed of Ni pillars deposited on Y-cut LiNBO3 substrate. We demonstrated both theoretically and experimentally that near the first limit of the Brillouin zone, the surface acoustic wave's temperature sensitivity depends considerably on pillars stiffness temperature constants, theirs resonance modes and lattice symmetry of the PnC.

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