Abstract
Spinel solid solutions of composition Mg2−xTi1+xO4have been prepared and investigated in the range 0 ≤x≤ 1. With increasing titanium content, the lattice parameter of the cubic unit cell increases froma= 844.00(3) pm to a maximum value of 850.66(5) pm. Simultaneously, electrical properties evolve from insulating to low resistive semiconducting behavior. The resistivity of samples with compositionsx≤ 0.68 is thermally activated with activation energies above 70 meV. The magnetic properties of the solid solutions are mainly determined by a temperature dependent magnetic moment of Ti3+in an octahedral crystal field. Reports about high-Tcsuperconductivity in the solid solution series cannot be confirmed.
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