Magneli
Magneli refers to a family of mixed-valence titanium oxides with the general formula Ti_nO_{2n-1}. These compounds are characterized by the presence of both Ti^3+ and Ti^4+ ions within their crystal structure, which leads to their unique electrical and optical properties. The Magneli phases were first discovered by Arne Magneli and his colleagues in the 1950s.
The general structure of Magneli phases can be visualized as a rutile TiO2 framework with regularly spaced
Magneli phases exhibit a range of interesting properties. They are generally conductive, with electrical conductivity increasing