Аннотация
Multiferroic materials are intensively investigated as potential
candidates for a new generation of solar cells, due to the coexistence
in their phases of ferroelectricity and magnetic order with low band
gap. However, symmetry considerations, which determine the interplay
between the magnetoelectric and photovoltaic properties of a light
irradiated multiferroic crystal, are not fully taken into account in the
current theory of the photovoltaic effect. Here the remarkable
photovoltaic and magnetophotovoltaic effects occurring in the
multiferroic phase of KBiFe2O5 are described using a theoretical
approach that takes directly into account the crystal and light beam
wave symmetries.
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