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

International Tables for Crystallography (2013). Vol. D, ch. 3.4, p. 520

Figure 3.4.3.9 

V. Janoveca* and J. Přívratskáb

aInstitute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8, Czech Republic, and bDepartment of Mathematics and Didactics of Mathematics, Technical University of Liberec, Hálkova 6, 461 17 Liberec 1, Czech Republic
Correspondence e-mail:  janovec@fzu.cz

[Figure 3.4.3.9]
Figure 3.4.3.9

Splitting of diffraction spots at a tetragonal-to-orthorhombic transition. (a) Fragment of the reciprocal lattice (stars) of the parent tetragonal phase. (b) Superposition of the reciprocal lattices of the four ferroelastic domains states in Fig. 3.4.3.8[link]: [{\bf R}_1^+] (reciprocal lattice black squares), [{\bf R}_1^-] (reciprocal lattice black circles), [{\bf R}_2^+] (reciprocal lattice white squares) and [{\bf R}_2^-] (reciprocal lattice white circles).