“…Materials based on titanium and cobalt constitute a “new group” of materials whose properties have not been fully understood and used so far. Doping titanium dioxide with cobalt allows to modify a number of its properties, primarily: structural [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ], optical [ 14 , 15 , 16 , 17 , 18 , 20 , 21 ], electrical [ 15 , 16 , 20 , 21 ] and magnetic [ 20 ]. These coatings have been of great interest due to the formation of dilute magnetic semiconductors (DMS), which is promising for the manufacturing of spintronic and magneto-optic devices [ 22 , 23 , 24 ].…”