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- Magnetoelectric effect (H-induced P, E-induced M).
- Magnetodielectric effect (H-induced Δε).
- Magnetoelectric control (switching of P by H or of M by E).
- High-frequency properties: Electromagnons.
3. What can optical spectroscopy do in physics of multiferroics?
4. Multiferroics from the family of rare-earth (RE) borates with general formula RM3(BO3)4, R = Pr – Er, Y; M = Al, Ga, Fe, Cr.
- Structure. Structural phase transition in RFe3(BO3)4.
- Magnetic properties of RE iron borates.
- Magnetoelectric and magnetodielectric properties of RE iron borates.
- People and equipment.
- Magnetic phase transition in SmFe3(BO3)4: splitting of Kramers doublets.
- Spectral evidences for a structural phase transition in EuFe3(BO3)4.
- Far infrared spectral signatures of the spin-phonon interaction in RFe3(BO3)4. Mechanisms of the spin-phonon coupling.
- Coupling between phonon and crystal-field excitations in multiferroic PrFe3(BO3)4. Coupled electron-phonon mode.