Low-temperature X-ray studies of crystal-lattice parameters and thermal expansion of KTiOPO4 crystals

Authors
Sheleg, AU Zub, EM Stremoukhova, LA Guretskii, SA
Citation
Au. Sheleg et al., Low-temperature X-ray studies of crystal-lattice parameters and thermal expansion of KTiOPO4 crystals, CRYSTALLO R, 45(2), 2000, pp. 215-218
Citations number
10
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
45
Issue
2
Year of publication
2000
Pages
215 - 218
Database
ISI
SICI code
1063-7745(200003/04)45:2<215:LXSOCP>2.0.ZU;2-A
Abstract
The unit-cell parameters a, b, and c of KTiOPO4 crystals have been measured by the X-ray diffraction method in the temperature range 80-320 K. The par ameters obtained were used to determine the thermal expansion coefficients alpha([100]), alpha([010]), and alpha([001]) along the principal crystallog raphic axes. It was established that thermal expansion in the crystals Is e ssentially anisotropic and that alpha([010]) > alpha([100]), whereas alpha( [001]) is close to zero. (C) 2000 MAIK "Nauka/Interperiodica".