New physical phenomena caused by magnetoelectric and antiferroelectric interactions in magnets
E.A. Turov,
V.V. Nikolaev
Mikheev Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, S Kovalevskoi str. 18, Ekaterinburg, 620108, Russian Federation
The review examines the dynamics of a special class
of magnetic substances (magnetically ordered crystals) in which
the magnetic atoms do not coincide with the symmetry center
(provided that such a center exists in the crystal). Research into
the magnetoelectric and antiferroelectric interactions in such
magnets has led to a new section in the spin dynamics of both the
electrical and nuclear subsystems. The review is based primarily
on the latest works (2001-2004) done by theoretical physicists
from the Ural region. Several results of the pioneering works
(1988-1990) of Ukrainian physicists, who opened this new
section in spin dynamics, are also discussed. All this research
has made it possible to compare the predicted effects for different crystal systems and thus has provided a more meaningful arrangement of the desired experiments.
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