2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138785We analyze the origin of ferromagnetism as a result of carrier mediation in diluted magnetic oxide semiconductors in the light of the experimental evidence reported in the literature. We propose that a combination of percolation of magnetic polarons at lower temperature and Ruderman-Kittel-Kasuya-Yosida ferromagnetism at higher temperature may be the reason for the very high critical temperatures measured (up to ~700 K).10 pages, 3 figures; formulae and references added, discussion extendedMaterials Sciencetext