Double perovskites have a wide range of properties and a corresponding broad range of potential applications, including magneto-optic and spintronic devices. However, their electric, magnetic, and elastic properties are strongly dependent on the ordered arrangement of cations in the double perovskite structure. In this work we show that the particular crystallization and growth process conditions (very slow rate, close to thermodynamic equilibrium conditions) of Polymer Assisted Deposition (PAD), promote very high B-site cationic ordering. Confirmation of the achievement of full Co/Mn cationic ordering is found in PAD grown epitaxial La2CoMnO6/SrTiO3double perovskite thin films displaying optimal magnetic properties.
- Hailin Wang
- Jaume Gazquez
- Narcis Mestres