The animation starts with a longitudinal wave with a wavelength equal to the lattice parameter a. The wave is traveling in the +x direction, as indicated by the k vector.
The program recognizes the following commands. The command may be executed by either clicking the button with the mouse (first column below) or by pressing a key (second column below). The mouse buttons may be removed from the screen by pressing the M key. Press M again to restore buttons.
|Highlight the front plane of atoms. Press 1 (f) again to remove highlight.
|Highlight the middle plane of atoms. Press 2 (c) again to remove highlight.
|Highlight the back plane of atoms. Press 3 (b) again to remove highlight.
|Polarization of wave in x direction (longitudinal wave)
|Polarization of wave in y direction (transverse wave)
|Polarization of wave in z direction (transverse wave)