Table 2.4.5.14

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

pdf | chapter contents | chapter index | related articles

International Tables for Crystallography (2006). Vol. D. ch. 2.4, p. 333

R. Vacher^a ^* and E. Courtens^a

^a Laboratoire des Verres, Université Montpellier 2, Case 069, Place Eugène Bataillon, 34095 Montpellier CEDEX, France
Correspondence e-mail: rene.vacher@ldv.univ-montp2.fr

Table 2.4.5.14 | top | pdf |
Trigonal Laue class $[R{_1}]$ : transverse modes, backscattering

$[c_{66} = {\textstyle{1 \over 2}}(c_{11} - c_{12})]$ ; $[p_{66} = {\textstyle{1 \over 2}}(p_{11} - p_{12})]$ .

$[\hat{\bf Q}]$	$[\hat{\bf u}]$	C	$[{\bf e}']$	$[\beta]$
		$[c_{66}]$		$[p_{41}^2 /c_{66}^{}]$
	D	$[c_{44}]$		$[p_{14}^2 /c_{44}^{}]$
	D	$[c_{44}]$		$[p_{14}^2 /c_{44}^{}]$
$[(0,1,1)/\sqrt 2 ]$		$[{\textstyle{1 \over 2}}(c_{44}^{} + c_{66}) + c_{14}]$	$[(0,1, - 1)/\sqrt 2 ]$	$[[(n_1^2 + n_3^2)^2 /16n_1^4 n_3^4 C][{n_1^2 (p_{66}^{} + p_{14}^{}) - n_3^2 (p_{44}' + p_{41}^{})}]^{2}]$
$[(0,1, - 1)/\sqrt 2 ]$		$[{\textstyle{1 \over 2}}(c_{44}^{} + c_{66}) - c_{14}]$	$[(0,1,1)/\sqrt 2 ]$	$[[(n_1^2 + n_3^2)^2/16n_1^4 n_3^4 C][{n_1^2 (p_{66}^{} - p_{14}^{}) + n_3^2 (p_{41}^{} - p_{44}')}]^{2}]$