TY - GEN
T1 - Surface and nonlocal theories for piezoelectric semiconductor and its application on the shear-horizontal surface wave propagation in half space
AU - Zhao, Lu Ke
AU - Jin, Feng
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/4/16
Y1 - 2021/4/16
N2 - This article attempts to study the nonlocal and surface effects on the wave dispersive relation in piezoelectric semiconductor. Considering linear phenomenological theory, nonlocal model for piezoelectric semiconductor is established. Meanwhile, the boundary condition involves surface effect is extended to piezoelectric semiconductor. According to the established theoretical model, shear-horizontal wave propagation in half-space is studied qualitatively. The computed results show that both nonlocal and surface effects reduce the real parts of phase speed when the order of wavenumber greater than 106. For different steady state carrier densities, similar form curves can be obtained for the consideration of nonlocal and surface effects. In addition, both effects cannot alter the imaginary parts of phase speed distinctly. The study in this work will contribute to explain the wave propagation in micro-scale devices.
AB - This article attempts to study the nonlocal and surface effects on the wave dispersive relation in piezoelectric semiconductor. Considering linear phenomenological theory, nonlocal model for piezoelectric semiconductor is established. Meanwhile, the boundary condition involves surface effect is extended to piezoelectric semiconductor. According to the established theoretical model, shear-horizontal wave propagation in half-space is studied qualitatively. The computed results show that both nonlocal and surface effects reduce the real parts of phase speed when the order of wavenumber greater than 106. For different steady state carrier densities, similar form curves can be obtained for the consideration of nonlocal and surface effects. In addition, both effects cannot alter the imaginary parts of phase speed distinctly. The study in this work will contribute to explain the wave propagation in micro-scale devices.
KW - Dispersive relations
KW - Piezoelectric semiconductor
KW - Shear-horizontal wave
KW - Surface and nonlocal effects
UR - https://www.scopus.com/pages/publications/85108023651
U2 - 10.1109/SPAWDA51471.2021.9445524
DO - 10.1109/SPAWDA51471.2021.9445524
M3 - 会议稿件
AN - SCOPUS:85108023651
T3 - Proceedings of the 2020 15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020
SP - 222
EP - 226
BT - Proceedings of the 2020 15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2020
Y2 - 16 April 2021 through 19 April 2021
ER -