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Abstract:
The use of high-field electron paramagnetic resonance (EPR)
made possible for the first time to obtain detailed information
on the anisotropy of integer-spin systems, which are usually
silent at conventional EPR frequencies. The data obtained so
far by different research groups on non-Kramers ions are
reviewed within the framework of ligand field theory at
different levels of approximations. Special attention is paid
to the use of the angular overlap model, which resulted to be
very powerful both in terms of qualitative and quantitative
explanation of the experimental results.
