International
Tables for
Crystallography
Volume D
Physical properties of crystals
Edited by A. Authier

International Tables for Crystallography (2006). Vol. D. ch. 2.1, p. 290

Figure 2.1.3.10 

G. Eckolda*

a Institut für Physikalische Chemie, Universität Göttingen, Tammannstrasse 6, D-37077 Göttingen, Germany
Correspondence e-mail: geckold@gwdg.de

[Figure 2.1.3.10]
Figure 2.1.3.10

Illustration of the compatibility relations for phonons in a tetragonal crystal with space group [P4mm] for wavevectors along [[\xi 00 ]].