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Theoretical study of pressure shift for R line of Cr 3+ ion in lanthanum lutetium gallium garnet
Author(s) -
Zhou YiYang
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200642278
Subject(s) - lutetium , lanthanum , gallium , ion , line (geometry) , spectral line , luminescence , crystal (programming language) , chemistry , analytical chemistry (journal) , materials science , physics , inorganic chemistry , yttrium , metallurgy , optics , quantum mechanics , geometry , mathematics , organic chemistry , computer science , programming language , oxide , chromatography
The pressure shifts for R line ( 2 E → 4 A 2 transition) of Cr 3+ luminescence spectra in lanthanum lutetium gallium garnet (LLGG:La 3 Lu 2 Ga 3 O 12 ) are studied by a molecular orbital model. The obtained pressure dependence of R line is in qualitative agreement with experiments, this is an attempt to overcome the theoretical difficulty for the R line pressure shifts of Cr 3+ :LLGG within the crystal‐field approximation. The anticrossing model and the assumed nephelauxetic effect for Cr 3+ ions in gallium garnets are mentioned. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)