Hexagonal Manganites—(RMnO3): Class (I) Multiferroics with Strong Coupling of Magnetism and Ferroelectricity
Figure 12
(a) Temperature dependence of the dielectric constant of HoMnO3 at different magnetic fields oriented along the -axis. The dashed line represents the increase of in the intermediate phase. (b) Field dependence of at selected temperatures. The two sets of data are vertically offset for better clarity. The two transition temperatures labeled and are shown for the 26 K data.
