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Microwave‐optical double resonance and magnetic circular dichroism of photochromic centres in CaF 2 :Ce
Author(s) -
Komarov A. V.,
Ryabchenko S. M.,
Terletsrii O. V.
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.2220680240
Subject(s) - magnetic circular dichroism , diamagnetism , electron paramagnetic resonance , paramagnetism , photochromism , chemistry , faraday effect , excited state , vibrational circular dichroism , circular dichroism , atomic physics , nuclear magnetic resonance , condensed matter physics , molecular physics , physics , crystallography , magnetic field , photochemistry , quantum mechanics , astronomy , spectral line
The dispersion of magnetic circular dichroism (MCD) and Faraday rotation (FR) for Ce 3+ photochromic centres in CaF 2 is measured at T = 1.7 °K. The optical technique of EPR detection is used to separate the paramagnetic and diamagnetic contributions to the MCD. From the phenomenological analysis of the MCD paramagnetic and diamagnetic parts is found that the optical transition to the lowest excited state is split into at least three components. This splitting as well as the presence of the paramagnetic contribution into the MCD are assumed to be due to an exchange interaction of 4f electron of Ce 3+ with the photochromic centre, other electrons involving spin‐orbital interaction.
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