Superconducting Thin Films for High Frequency Microwave Applications

用于高频微波应用的超导薄膜

• 批准号: 9260132
• 负责人: Michael Eddy
• 金额: $ 5万
• 依托单位: SUPERCONDUCTOR TECHNOLOGIES INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9260132&HistoricalAwards=false
• 关键词: Superconducting; Thin; Films; Frequency; Microwave

High quality, epitaxial TlBaCaCuO films on MgO and sapphire substrates will be prepared. However, some problems exist for such epitaxial growth and it is proposed to overcome these difficulties by buffering the substrate using an inert epitaxial layer, which has a close lattice match to the TBCCO structure. Growth of epitaxial Tl-based films via an established post deposition annealing process on top of thin, high quality CeO2 buffer layers will be undertaken. If successful, this process could replace much of the material currently grown on LaAlO3 for microwave components at high frequencies where frequency settability is a key issue.

将在MgO和蓝宝石衬底上制备高质量的外延TlBaCaCuO薄膜。然而，这种外延生长存在一些问题，建议通过使用与TBCCO结构具有密切晶格匹配的惰性外延层来缓冲衬底来克服这些困难。通过建立的沉积后退火工艺，在薄的高质量CeO2缓冲层上生长外延tl基薄膜。如果成功，该工艺可以取代目前在LaAlO3上生长的大部分材料，用于高频微波元件，其中频率可设置性是一个关键问题。