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

fYear

2009

fDate

20-24 April 2009

Firstpage

935

Lastpage

938

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

978-1-4244-3511-1

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2009.5168326

Filename

5168326