Comment on 'Enhancement of room temperature ferromagnetism in N-doped TiO_(2-x)rutile: Correlation with the local electronic properties' [Appl. Phys. Lett. 97, 012506 (2010)]

摘要

Recently an article was published by Drera et al. in this journal investigating the magnetic and electronic properties of ferromagnetic undoped and N-doped TiO_(2-x) rutile. My comment focuses on the photoemission spectra shown in Figs. 2 and 4 of Ref.In Fig. 2 the authors reported the Ti 2p and N Is core level spectra of TiO_(2-x) and 4% N-doped TiO_(2-x). In Fig. 4 the authors presented the valence band spectra of TiO2_x and N-doped TiO_(2-x).