Molecular Chemistry of the Superconductor - Substrate Interface

制造的器件商业化生产的关键是 具有最佳和可重复性的超导薄膜 属性是一个进程的标识， 化学计量和形态的控制。 这种控制只能 通过对化学的透彻理解， 作为模板的超导体-衬底界面 成长的电影 拟议研究的目的是 以确定不同基质对 沉积挥发性模型钡源试剂， 氧化钡 主要的气相产物将是 已识别，与沉积物的成分相关， 与在均匀氧化中获得的结果相比， 分解研究 将获得初始速率数据， 用于确定分解的动力学。

The key to the commercial production of devices fabricated from superconducting thin films with optimal and reproducible properties is the identification of a process that has exact control of stoichiometry and morphology. This control can only be achieved with a thorough understanding of the chemistry at the superconductor-substrate interface which serves as the template for the growing film. The objective of the proposed research is to determine the influence of different substrates on the deposition of a volatile model barium source reagent to give barium oxide. The predominate gas phase products will be identified, correlated to the composition of the deposits and compared to results obtained in homogeneous oxidative decomposition studies. Initial rate data will be obtained and used to determine the kinetics of the decomposition.