Cubic structure and cation disordering in YBCO thin film deposited by high speed pulsed laser deposition

The authors have investigated the crystalline structure of high rate deposited YBa2Cu3Ox thin films prepared by high speed pulsed laser deposition. A cation disordered cubic structure with lattice parameter of 0.39 nm was found in YBCO thin film deposited at 12.2 nm/s deposition rate and 650 C substrate temperature conditions. The short range ordered cubic YBa2Cu3Ox thin film growth at high deposition rate was explained by the short migration length of Y and Ba cation atoms owing to the high incident flux rate