Structural and Spectroscopic Features of the Bixbyite-Type Yttrium Scandate Doped by Rare-Earth Ions

Yttrium scandate crystal fiber has been obtained through laser-heated pedestal growth. The crystal belongs to a bixbyite crystal structure and crystallizes in Ia (3) over bar space group. X-ray diffraction method shows a lattice parameter of a = 10.228(1) angstrom. Factor-group analysis of YScO3 Raman spectra points to high degree of disorder in crystal structure of the new compound. Spectral-kinetic investigation of the crystal fibers doped by rare-earth ions points to the presence of two independent active optical centers of rare-earth ions. Moreover, the character of rare-earth impurities' distribution is independent on a rare-earth ionic radius size.

Automated summary

Yttrium scandate crystal fiber with a bixbyite crystal structure and high degree of disorder has been obtained through laser-heated pedestal growth. Spectral-kinetic investigation of the crystal fibers doped by rare-earth ions reveals the presence of two independent active optical centers, unaffected by the ionic radius size.