Crystal and magnetic structure of the new double perovskites Ba1+xLa1-xMnSbO6 with 0.1<x<0.7 containing Mn2+/Mn3+ mixtures.
Double perovskites Ba1+xLa1-xMnSbO6 with 0.1<x<0.7 were synthesized by conventional ceramic method in air atmosphere as polycrystalline powders. These perovskites belong to the I2/m monoclinic space group. By doping BaLaMnSbO6 with Ba2+, we force Mn to be in a mixture of Mn2+ and Mn3+. This is supported by magnetization measurements performed in a SQUID with indications of the presence of Mn3+. Magnetic behavior of Mn containing double perovskites with Mn2+/Mn3+ has been explained either assuming that Zener double exchange is established or uncompensated antiferromagnetic interactions between Mn2+ (S=5/2) and Mn3+ (S=2) conducting to ferromagnetic behavior. We expect in this project to study the crystal and magnetic structure of the title double perovskites and to understand their magnetic behavior as a function of temperature.
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Raul E. Carbonio; ARCINIEGAS JAIMES Diana Marcela; CUELLO Gabriel and NASSIF Vivian. (2015). Crystal and magnetic structure of the new double perovskites Ba1+xLa1-xMnSbO6 with 0.1<x<0.7 containing Mn2+/Mn3+ mixtures.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2369
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