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Showing 1 to 5 of 5 for “"V2O3"”.
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Micromagnetic modelling and magneto-optical characterization of Ni/V2O3 hybrid structures
Magnetic behaviour of five bi-layer V2O3/Ni thin film samples sputtered on sapphire, Al2O3, were investigated using MOKE (magneto-optic Kerr effect). Three samples show a fourfold symmetry in coercivity with very small but similar change in magnetic remanence. For comparison micromagnetic …
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Percolation and nanosecond fluctuators in V2O3 films within the metal-insulator transition
Vanadium sesquioxide (V2O3) exhibits a first-order metal-insulator transition (MIT) at 160 K between a low temperature, monoclinic, antiferromagnetic Mott insulator and a high temperature, rhombohedral, paramagnetic, metallic phase. In thin films, due to strain, the transition takes place over a …
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Electronic, thermoelectric and optical properties of vanadium oxides: VO2, V2O3 and V2O5
Correlated electrons in vanadium oxides are responsible for their extreme sensitivity to external stimuli such as pressure, temperature or doping. As a result, several vanadium oxides undergo insulator-to-metal phase transition (IMT) accompanied by structural change. Unlike vanadium pentoxide …
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Materials At Extremes: Shock-induced Fracture and Phase Transitions
… Mott-Hubbard system, vanadium sesquioxide V2O3. The phase transition and mechanism were interrogated with Raman spectroscopy and optical photothermal IR microscopy of recovered samples, as well as in situ time-resolved optical reflectivity measurements during shock propagation. Herein we …
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Catalytic coatings for vanadium-based hydrogen membranes
… air treatment produced catalytically active V2O3 on the surface of vanadium. The surface oxide yielded similar fluxes to Mo2C, yet, was only stable at 550 °C. Density functional theory simulations revealed superior energetic properties for hydrogen adsorption and dissociation on the V2O¬3 …