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Monovalent Mercury‐Like Ion Dimer Centres in Alkali Halide Crystals
Author(s) -
Ermoshkin A.,
Evarestov R.,
Gindina R.,
Maaroos A.,
Osminin V.,
Zazubovich S.
Publication year - 1975
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.2220700235
Subject(s) - halide , alkali metal , ion , dimer , mercury (programming language) , luminescence , chemistry , inorganic chemistry , crystallography , analytical chemistry (journal) , materials science , organic chemistry , computer science , programming language , optoelectronics
Polarized luminescence of (Ga + ) 2 , (In + ) 2 and (Tl + ) 2 centres in KCl crystals is investigated experimentally. In the series of KCl, KBr, and KI crystals the (Tl + ) 2 centres are studied in order to clear up the influence of the anions on the (A + ) 2 centre properties. The quasimolecules [Tl 2 X 10 ] 8‐ and [T1 2 X 11 ] 9‐ , where X are Cl − or I − ions, with the symmetry D 2h and D 4h , respectively, were theoretically considered by a MO method. An attempt is made to prove the model of the (A + ) 2 centres basing on a comparison of the results of the experimental and theoretical investigations.