Acoustic phonon anisotropy: Phonon focusing

✍ Scribed by G.A. Northrop

• Book ID: 104109586
• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 30 KB
• Volume: 35
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/s0010-4655(84)82949-5

✦ Synopsis

Nature of the physical problem

Calculation of the phase velocity, polarization vector, group velocity, and phonon-focusing enhancement factor for non-dispersive acoustic plane-waves of any wave-vector.

Method of solution

The group velocity and the phonon-focusing enhancement are calculated from the derivatives of the characteristic equation of the Christoffel equations.

Restrictions on complexity

The material must be described by a symmetric real 6-vector elastic constant matrix.

Typical running time 0.3 s.