A trapped wave in a ferroelectric with a moving strip domain

Autor:	N. S. Shevyakhov, O. Yu. El’meshkin
Rok vydání:	2001
Předmět:	Physics Quasistatic approximation Classical mechanics Physics and Astronomy (miscellaneous) Condensed matter physics Surface wave Wave propagation Antisymmetric relation Dispersion relation Characteristic equation Plane wave Transverse wave
Zdroj:	Technical Physics. 46:540-548
ISSN:	1090-6525 1063-7842
DOI:	10.1134/1.1372942
Popis:	The existence of a shear homogeneous plane wave trapped by a strip domain moving uniformly in a tetragonal ferroelectric crystal is demonstrated. Using the nonrelativistic quasistatic approximation and a change to the moving frame of reference, the solution is obtained and the dispersion relation is derived for the spatial spectrum of the trapped wave. The uniqueness of the solution is established in the case of the multiple degeneracy of the roots of the characteristic equation when the trapped wave contains an attached wave in the strip domain. The trapped wave is shown to correspond to the antisymmetric mode of the electroacoustic wave of the strip domain at the initial point of the spectrum branch. The specific features of the spatial resonance of the trapped wave with a shear wave obliquely incident on the strip domain are considered.
Databáze:	OpenAIRE
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