University of Pennsylvania ScholarlyCommons Department of Mechanical Engineering & Departmental Papers (MEAM) Applied Mechanics March 2008 Acoustic phonon scattering from particles embedded in an anisotropic medium: A molecular dynamics study Neil Zuckerman University of Pennsylvania Jennifer R. Lukes University of Pennsylvania,
[email protected] Follow this and additional works at: https://repository.upenn.edu/meam_papers Recommended Citation Zuckerman, Neil and Lukes, Jennifer R., "Acoustic phonon scattering from particles embedded in an anisotropic medium: A molecular dynamics study" (2008). Departmental Papers (MEAM). 145. https://repository.upenn.edu/meam_papers/145 Reprinted from Physical Review B, Volume 77, Article 094302, March 2008, 20 pages. Publisher URL: http://dx.doi.org/10.1103/PhysRevB.77.094302 This paper is posted at ScholarlyCommons. https://repository.upenn.edu/meam_papers/145 For more information, please contact
[email protected]. Acoustic phonon scattering from particles embedded in an anisotropic medium: A molecular dynamics study Abstract Acoustic phonon scattering from isolated nanometer-scale impurity particles embedded in anisotropic media is investigated using molecular dynamics simulation. The spectral-directional dependence of the scattering, for both longitudinal and transverse modes, is found through calculation of scattering cross sections and three dimensional scattering phase functions for inclusions of varying sizes, shapes, and stiffnesses and for waves of different wave numbers. The