TY - JOUR
T1 - Study of the temperature dependence of the structureof KY3F10
AU - Friese, K
AU - Krüger, H
AU - Kahlenberg, V
AU - Balic Zunic, Tonci
AU - Emerich, H
AU - Gesland, J-Y
AU - Grzechnik, A
PY - 2006
Y1 - 2006
N2 - KY3F10 (Fm¯3m, Z = 8) is an anion-excess fluorite-related superstructure, which is employed as a room-temperature laser, when doped with rare-earths. Earlier conductivity measurements have revealed two thermally activated processes below and above 600 K. In this work we studied the high-temperature behaviour of KY3F10 in the temperature range from 293 K up to 800 Kat ambient pressure using x-ray powder and single crystal diffraction. No structural phase transition is observed in this temperature range and the structure determinations reveal that the change of structural parameters, interatomicdistances, and angles with temperature is very small. A prominent maximum observed in the difference Fourier maps, which corresponds to the centre of an empty F8 cube, might be one of the interstitial sites involved in the conduction mechanism.
AB - KY3F10 (Fm¯3m, Z = 8) is an anion-excess fluorite-related superstructure, which is employed as a room-temperature laser, when doped with rare-earths. Earlier conductivity measurements have revealed two thermally activated processes below and above 600 K. In this work we studied the high-temperature behaviour of KY3F10 in the temperature range from 293 K up to 800 Kat ambient pressure using x-ray powder and single crystal diffraction. No structural phase transition is observed in this temperature range and the structure determinations reveal that the change of structural parameters, interatomicdistances, and angles with temperature is very small. A prominent maximum observed in the difference Fourier maps, which corresponds to the centre of an empty F8 cube, might be one of the interstitial sites involved in the conduction mechanism.
U2 - 10.1088/0953-8984/18/9/007
DO - 10.1088/0953-8984/18/9/007
M3 - Journal article
SN - 0953-8984
VL - 18
SP - 2677
EP - 2687
JO - Journal of Physics: Condensed Matter
JF - Journal of Physics: Condensed Matter
ER -