Enhancement of antiferromagnetic interaction and transition temperature in M<Subscript>3</Subscript>TeO<Subscript>6</Subscript> systems (M=Mn, Co, Ni, Cu)

Several M<Subscript>3</Subscript>TeO<Subscript>6</Subscript> (M=Mn, Co, Ni, Cu) oxides order antiferromagnetically at low temperatures (≲60 K), while displaying interesting dielectric properties at high temperatures (ferroelectricity below 1000 K in M=Ni case). We have investigated and analyzed the structural and magnetic properties of Mn-doped Co<Subscript>3</Subscript>TeO<Subscript>6</Subscript> and Ni<Subscript>3</Subscript>TeO<Subscript>6</Subscript>, which order antiferromagnetically at temperatures higher than their undoped counterparts. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013