Investigation of crystal and magnetic structure of a new manganese tellurate
First studied by Fruchart et.al, Mn2TeO6 was synthesized using solid state reaction and was reported as inverse trirutile structure. During the development and optimization of the solid state synthesis process, we discovered a new phase as an intermediate state in the phase mixture. Now finally it is possible to obtain it as a single phase using the spray drying method. Laboratory X-ray diffraction performed at room temperature indicateds that the new compound is single phase and may be indexed as trigonal cell using DICVOL software. Those structure paramters are similar to the ones reported for layered honeycomb tellurates, like BiFeTeO6. Magnetic susceptibility of the new trigonal Mn2TeO6 shows an antiferromagnetic transition around 11K in both ZFC and FC; while there is a subtle divergence at around 60K. To go further, we would like to perform a neutron powder diffraction study of the new trigonal Mn2TEO6 to investigate the crystal structure including oxygen positions, Mn and Te distribution on the cationic sites due to their strong contrast in NPD. In addition, we are also interested to perform a NPD on one member of the layer honeycomb of manganese based tellurates.
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MATSUBARA Nami; BOLLETTA Juan Pablo; DAMAY Francoise; MARTIN Christine; SUARD Emmanuelle and VERTRUYEN Benedicte. (2018). Investigation of crystal and magnetic structure of a new manganese tellurate. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2543