Pereira, L. C. J.Nunes, M. R.Monteiro, O. C.Silvestre, António Jorge2012-09-102012-09-102008-12-01Pereira L C J, Nunes M R, Monteiro O C, Silvestre A J. Magnetic properties of Co-doped TiO(2) anatase nanopowders. Applied Physics Letters. ISSN: 0003-6951. 2008: 93 (22).0003-6951http://hdl.handle.net/10400.21/1764This letter reports on the magnetic properties of Ti(1-x)Co(x)O(2) anatase phase nanopowders with different Co contents. It is shown that oxygen vacancies play an important role in promoting long-range ferromagnetic order in the material studied in addition to the transition-metal doping. Furthermore, the results allow ruling out the premise of a strict connection between Co clustering and the ferromagnetism observed in the Co:TiO(2) anatase system.engCobaltFerromagnetic MaterialsLong-Range OrderMagnetic SemiconductorsNanoparticlesSemiconductor DopingTitanium CompoundsVacancies (Crystal)Thin-FilmsFerromagnetismOxidesFieldjournal article