We review experiments and results on ferromagnetic and metallic A 2FeMoO 6 double perovskites that made it possible to obtain a detailed understanding of the nature of the ferromagnetic coupling and paved the way for further enhancement of the Curie temperature. We show that appropriate chemical substitutions, combined with detailed structural, magnetotransport and spectroscopic data allow us to map quite a complete picture of the properties of these oxides.
Journal of Magnetism and Magnetic Materials
- Pub Date:
- April 2005
- Colossal magnetoresistance;
- Exchange and superexchange interactions;
- Saturation moments and magnetic susceptibilities;
- Nuclear magnetic resonance and relaxation