Physics – Computational Physics
Scientific paper
2005-10-19
Commun. Comp. Phys., Vol. 2, No. 2, pp. 271-292 (2006)
Physics
Computational Physics
Scientific paper
We describe and evaluate a numerical solution strategy for simulating surface acoustic waves through semiconductor devices with complex geometries. This multi-physics problem is of particular relevance to the design of quantum electronic devices. The mathematical model consists of two coupled partial differential equations for the elastic wave propagation and the electric field, respectively, in anisotropic piezoelectric media. These equations are discretized by the finite element method in space and by a finite difference method in time. The latter method yields a convenient numerical decoupling of the governing equations. We describe how a computer implementation can utilize the decoupling and via object-oriented programming techniques reuse independent codes for the Poisson equation and the linear time-dependent elasticity equation. First we apply the simulator to a simplified model problem for verifying the implementation, and thereafter we show that the methodology is capable of simulating a real-world case from nanotechnology, involving surface acoustic waves in a geometrically non-trivial device made of Gallium Arsenide.
Barnes Crispin H. W.
Langtangen Hans Petter
Rahman Syed Shawon
No associations
LandOfFree
A finite element method for modelling electromechanical wave propagation in anisotropic piezoelectric media does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A finite element method for modelling electromechanical wave propagation in anisotropic piezoelectric media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A finite element method for modelling electromechanical wave propagation in anisotropic piezoelectric media will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-242172