Transformation of Co<sub>3</sub>O<sub>4</sub>nanoparticles to CoO monitored by<i>in situ</i>TEM and predicted ferromagnetism at the Co<sub>3</sub>O<sub>4</sub>/CoO interface from first principles
Xiaodan Chen, Heleen van Gog, Marijn A. van Huis
Abstract
The heating-induced transformation of Co<sub>3</sub>O<sub>4</sub>nanoparticles to CoO at 350–400 °C was monitored in nanoscale detail by<italic>in situ</italic>TEM; DFT calculations predict a considerable net ferromagnetic moment originating from the Co<sub>3</sub>O<sub>4</sub>/CoO interface.
Topics & Concepts
Materials scienceFerromagnetismNanoparticleIn situMagnetic momentNanoscopic scaleTransformation (genetics)CrystallographyCondensed matter physicsAnalytical Chemistry (journal)NanotechnologyPhysicsChemistryBiochemistryChromatographyGeneMeteorologyCatalytic Processes in Materials ScienceMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics