Investigation of the Cr3+ + sites in SrLaGaO4 crystal

✍ Scribed by W. Ryba-Romanowski; S. Go<̵a̧b; W.A. Pisarski; G. Dominiak-Dzik; A. Paja̧czkowska

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 347 KB
• Volume: 242
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00764-u

✦ Synopsis

A single crystal of chromium doped SrLaGaO, has been grown by the Czochralski method. The Cr3' sites have been indentified on the basis of time-resolved luminescence spectra and luminescence decay curves recorded in the 5-300 K If temperature region. One Cr.

site in CrO, octahedra distorted by random distribution of Sr'+ and La"+ ions over sites with '+ C,, symmetry is indicated by structural investigations. Instead, three distinct sites of Cr-ions situated in the low, medium and high crystal field occur in the lattice of SrLaGaO,.