Hexagonal Manganites—(RMnO3): Class (I) Multiferroics with Strong Coupling of Magnetism and Ferroelectricity
Figure 32
(a) Heat capacity at zero magnetic field, (b) magnetization at Oe, and (c) dielectric constant of multiferroic ErMnO3. The two transitions at and are marked by vertical arrows. The inset to (c) shows the derivative, .