Synthesis, structural characterization and magnetic properties of the serie of double perovskites Ba1+x La1-xMnSbO6 with 0.1≤x≤0.7

FERNANDO POMIRO; JOSÉ A. ALONSO ; DIANA M. ARCINIEGAS JAIMES; VIVIAN M. NASSIF; RAÚL E. CARBONIO; MARÍA C. BLANCO; GABRIEL CUELLO

Petrópolis

Seminario; XV Latin American Seminar of Analysis by X-Ray Techniques ? SARX; 2016

Latin American Seminar of Analysis by X-Ray Techniques ? SARX

Double perovskites Ba1+xLa1-xMnSbO6 were synthesized by traditional ceramic method in air as polycrystalline powders. The 0.1≤x≤0.2 compounds belong to the I 2/m monoclinic space group, while the x≥0.3 perovskites belong to the I 4/m tetragonal space group. Effective presence of mixture of Mn2+/Mn3+ has been well established by X-ray Emission Spectroscopy (XES) for the set. The system Ba1+xLa1-xMnSbO6 displays signs of ferromagnetism at low temperature by magnetometry analysis. Also, Neutron Powder Diffraction data reveals that at 4 K, there is a presence of long range order that begins to disappear with increasing doping. We will show crystallographic and magnetic cell, magnetometry measurements, and XES measurements.