Structural, magnetic and dielectric properties of La2NiMnO6 thin film by chemical solution deposition method

Double perovskite La2NiMnO6 thin film was successfully prepared on (001)-oriented 0.7 wt% Nb-doped SrTiO3 single crystal substrate by chemical solution deposition method. The microstructures as well as properties were investigated. The results show that the derived thin film is an admixture of Ni/Mn ordering, and two ferromagnetic transitions are observed with Curie temperatures of 289 and 110 K, respectively. A crossover from positive to negative magnetodielectric effect is observed near room temperature. The success preparation of La2NiMnO6 thin film by chemical solution deposition will provide a useful method to deposit double perovskite multiferroic thin films with low-cost.