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Absorption and Stress‐Induced Linear Dichroism of Pb ++ Centres in KCl and RbCl
Author(s) -
Schmitt K.
Publication year - 1982
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.2221130220
Subject(s) - absorption (acoustics) , coupling strength , stress (linguistics) , phonon , range (aeronautics) , coupling (piping) , linear dichroism , circular dichroism , chemistry , absorption band , analytical chemistry (journal) , molecular physics , condensed matter physics , materials science , crystallography , physics , optics , philosophy , linguistics , chromatography , metallurgy , composite material
The optical absorption and the stress‐induced linear dichroism (SLD) of Pb ++ ‐centres in KCl and RbCl are investigated in the temperature range 4 to 200 K. Using moments analysis the energy parameters of the systems, the effective electron‐phonon‐coupling constants of the |A> state, and the effective frequencies of the A 1g , E 2g , and T 2g interaction modes are determined. The temperature dependence of the B‐band and the splitting of the C‐band give additional information about the dynamical properties of the systems. The results imply that in either case the electronlattice interactions of the 3 T 1u state and of the 1 T 1u state are of comparable strength.