Room temperature ferromagnetism in metallic Ti_1−xV_xO₂thin films

Abstract

Transition metal doped TiO2 diluted magnetic semiconductors have attracted considerable interest due to their room temperature ferromagnetism.

Homogeneous and inhomogeneous magnetic oxide semiconductors*

“…Some publications favored carrier exchange interactions, which are characterized by strong coupling between localized d electrons of TM ions and the extended carriers of oxides. [22,29,35] Yamada et al even transformed a low-carrier paramagnetic (PM) state of Co-doped TiO 2 to a high-carrier FM state by applying a gate voltage of a few volts, thereby revealed the considerable roles of electron carriers in high-098506-2 temperature FM. [36] With the further investigations, FM interaction can be unambiguously observed in some oxides without free carriers but in a dielectric state, which demonstrates that carriers are not necessary for FM.…”

Copper-supported catalysts for sustainable PET depolymerization: a cost-effective approach towards dimethyl terephthalate (DMT) production

“…[6][7][8] In light of sustainable development, recycling emerges as the most appropriate scientific technological solution to mitigate plastic pollution. 9,10 While burning plastics for energy recovery is a direct method for PET waste plastic recycling, it may not be the best solution due to secondary pollution during the treatment process, hindering its efficacy in achieving a circular economy. [11][12][13] In contrast, chemical recycling stands out as the most prevalent and well-developed technology for PET recycling, preserving the plastic's chemical composition by transforming it into value-added monomer molecules.…”