Spectroscopic study of the microwave plasma enhanced pulsed laser deposition for Y1Ba2Cu3O7−x superconducting thin films

On the van der Waals Heteroepitaxy and Hydroxylation/Oxidation States of Au@Muscovite by Pulsed Laser Ablation in Water and Recovery in Aqueous KOH Solution

“…Physical vapor deposition (PVD) and chemical vapor deposition (CVD) were commonly adopted to prepare the metal or metal oxide coatings on the muscovite flake including that by the facile evaporation and higher throughput vapor transport technique or hydrothermal coupled with mist-CVD process . Here, pulsed laser ablation in liquid (PLAL), which typically produced colloidal suspension of Au in water with the diversified states of fcc NPs and novel liquid-crystalline lamellae rolled into tubes , as well as atom clusters with magic numbers according to mass spectroscopic study, was used to promote the Au + /K + ion exchange at interlayers and the Au–K–OH linkage at the hydrophilic surface of muscovite powders and bulk single-crystal flakes. Note that the dynamic laser ablation process as employed in this work and others, and the single pulse laser shot of muscovite, enables rapid kinetic phase change which is different from the alternative/conventional hydrothermal process such as static immersion of muscovite powders/flakes in hydrothermal conditions at 800 °C to form kalsilite and corundum .…”