Effect of high-intensity ultrasound on superconducting properties of polycrystalline YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub>
Effect of high-intensity ultrasound on superconducting properties of polycrystalline YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub>
High intensity ultrasonic irradiation (sonication) of alkane slurries of polycrystalline YBa2Cu3O7_x leads to a significant modification of the grain morphology and, if performed with enforced oxygen flow, results in the increase of the superconducting transition temperature. Sonication with added Fe(CO)5 produces magnetic Fe2O3 nanoparticles deposited on the surface of YBa2Cu3O7-x …