Crystal structure and lattice dynamics of Sr{sub 3}Y(BO{sub 3}){sub 3}

Journal Article · Mon Dec 15 04:00:00 EST 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.08.025· OSTI ID:21212123

Waskowska, A ^[1]; Majchrowski, A ^[2]; Kisielewski, J; Szyrski, W ^[3]; Hanuza, J ^[4]

---

1. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wroclaw 2 (Poland)
2. Institute of Applied Physics, Military University of Technology, 2 Kaliskiego Street, 00-908 Warszawa (Poland)
3. Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland)
4. Department of Bioorganic Chemistry, Faculty of Industry and Economics, University of Economics, ul. Komandorska 118/120, 53-345 Wroclaw (Poland)

X-ray, Raman and infrared (IR) studies of the Sr{sub 3}Y(BO{sub 3}){sub 3} (BOYS) single crystal grown by the Czochralski technique are presented. The crystal structure is trigonal, space group R3-bar (no. 148), and comprises six formula units in the unit cell with the hexagonal axes a=12.527(2) and c=9.280(2) A. The assignment of the observed vibrational modes is proposed on the basis of lattice dynamics calculations. The unusual large bandwidth of the internal modes and the enhancement of the principal mean square thermal displacements for BO{sub 3} and Y(1) indicate that some type of disorder is present in the studied crystal. - Graphical abstract: View of the crystal structure of BOYS along the c-axis.

• OSTI ID: 21212123
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 12 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
BORATES
CRYSTAL STRUCTURE
LASER MATERIALS
MONOCRYSTALS
PHONONS
SPACE GROUPS
X RADIATION
YTTRIUM COMPOUNDS