Title :
Disorder of crystal structure and optical activity of langasite family crystals
Author :
Ftomyn, N. ; Shopa, Ya. ; Sokolyuk, I.
Author_Institution :
Ivan Franko Nat. Univ. of Lviv, Lviv, Ukraine
Abstract :
The polarizability theory of optical activity is used to investigate the crystal structure peculiarities of disordered langasite family crystals. An optical rotation was calculated as the function of site occupancy of mixed 1a, 2d and 3f Wickoff position for various Ca-gallogermanate structure type crystals.
Keywords :
calcium compounds; crystal structure; gallium compounds; lanthanum compounds; optical rotation; polarisability; Ca-gallogermanate structure type crystals; Ca3Ga2Ge4O14; La3Ga5.5Ta0.5O14; La3Ga5SiO14; crystal structure peculiarities; disorder crystal structure; disordered langasite family crystals; mixed 1a Wickoff position; mixed 2d Wickoff position; mixed 3f Wickoff position; optical activity; optical rotation; polarizability theory; site occupancy; Atom optics; Atomic layer deposition; Crystals; Educational institutions; Optical polarization; Optical refraction; Silicon; disorder; langasite; optical activity; polarizabilities;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912335
