Film of vanadium oxide on glass surface.
Vanadium sputtered on glass with the subsequent oxidation in natural conditions. Annealing of the sample was carried out at 500 ^îÑ during 10 min in dry oxygen.

Image courtesy of Gusev E.Yu., Taganrog State University Of Radioengineering.
The sample was kindly given by Dzhuplin V.N., Ageev O.A., Taganrog State University Of Radioengineering.