Hexagonal Manganites—(RMnO3): Class (I) Multiferroics with Strong Coupling of Magnetism and Ferroelectricity
Figure 34
(a) Anomalies of the isothermal dielectric constant at different temperatures. The arrows show the anomaly at the phase boundary. (b) Dielectric constant at high fields. The two transitions at and are marked for the 80 kOe data. The different curves in (b) are vertically offset for better clarity. The inset to (b) shows the anomaly near at low magnetic fields.
