Title :
Material parameters of AlN and LiAlO2 single crystals
Author :
Sotnikov, A.V. ; Schmidt, H. ; Weihnacht, M. ; Smirnova, E.P. ; Chemekova, T.Yu. ; Makarov, Yu.N.
Author_Institution :
Leibniz Inst. for Solid State & Mater. Res. Dresden, Dresden, Germany
Abstract :
We have successfully grown high quality AlN piezoelectric single crystal by sublimation technique. Transparent and coloring from amber to dark brown (depending on growth temperature) crack-free boules of approximately 15 mm in diameter and 25 mm in length along [0001] direction were obtained. Full sets of material parameters of grown AlN and commercially available LiAlO2 bulk crystals were measured at room temperature. Temperature coefficients of the material parameters of LiAlO2 were also obtained in a temperature range from 200 K to 310 K.
Keywords :
aluminium compounds; cracks; crystal growth from vapour; lithium compounds; piezoelectric materials; sublimation; AlN; LiAlO2; [0001] direction; crack-free boules; growth temperature; piezoelectric single crystal; sublimation technique; temperature 200 K to 310 K; temperature coefficients; Chemical technology; Crystalline materials; Crystallization; Crystals; Dielectric measurements; Silicon carbide; Surface acoustic waves; Temperature dependence; Thermal conductivity; Tungsten;
Conference_Titel :
Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International
Conference_Location :
Besancon
Print_ISBN :
978-1-4244-3511-1
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2009.5168326
