Atomic structure and local spectroscopy of complex oxidic structures (A03)

复杂氧化结构的原子结构和局域光谱（A03）

• 批准号: 61744731
• 金额: --
• 依托单位: Fachgruppe Oberflächen- und Grenzflächenphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/61744731?language=en
• 关键词: Atomic; structure; local; spectroscopy; complex

The atomic structure of oxidic interfaces and their interface-induced specific electronic, dielectric and/or ferroelectric properties will be studied for the newly discovered two-dimensional oxide quasicrystal based on scanning tunnelling microscopy and spectroscopy (STM, STS) as well as piezo-response atomic force microscopy (PFM). The goal is the understanding of the local bonding concept and the quasicrystalline formation process with special emphasis on alternative approximant formation. For these two-dimensional oxides and related ultrathin Perovskite films, the ferroelectric nanodomain structure will be studied with the recently developed combination of STM and PFM.

基于扫描隧道显微镜和光谱学（STM，STS）以及压电响应原子力显微镜（PFM），对新发现的二维氧化物准晶的氧化物界面原子结构及其界面诱导的特定电子、介电和/或铁电性质进行了研究。我们的目标是理解当地的键合概念和准晶形成过程，特别强调替代近似形成。对于这些二维的氧化物和相关的铁电薄膜，铁电纳米畴结构将与最近发展的STM和PFM相结合的研究。