New series of honeycomb ordered oxides, Na₃M₂SbO₆ (M(<scp>ii</scp>) = Mn, Fe, (Mn, Fe), (Mn, Co)): synthesis, structure and magnetic properties

Abstract

New members, Na₃M₂SbO₆ (M = Mn, Fe) belonging to the honeycomb family of oxides have been identified through chemical tuning of the oxidation states. The stabilization of Mn²⁺ (<italic>d</italic>⁵) and Fe²⁺ (<italic>d</italic>⁶) cations in the honeycomb geometry lead to various magnetic interactions.