Electron Correlations and Properties of Metals and Insulators

金属和绝缘体的电子相关性和性质

• 批准号: 0093079
• 负责人: David Langreth
• 金额: $ 35.4万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-01 至 2005-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0093079&HistoricalAwards=false
• 关键词: Electron; Correlations; Properties; Metals; Insulators

0093079LangrethThis theoretical project is comprised of several related topics. One of them is density functional theory of both long-range and short-range interaction between microscopic and mesoscopic bodies. Another looks at a theory of electronic dissipation, non-adiabatic charge transfer and potentials and rates for atoms and molecular species moving and reacting at a solid surface. A third component is the theory of transport in quantum dots using techniques previously developed for non-adiabatic charge transfer. This work is related to the properties of metals and insulators at a surface. It explores the new physical phenomena which are seen as an electron, an atom, or a molecular species moves near a surface. These include very subtle, long-range and technologically important questions of forces between small bodies and between a small grain and a surface. They include complex questions of charge transfer, dissipation and energy transfer, when do they happen and how. Finally there are attempts to understand transport in single electron transistors, consisting of very small artificial structures embedded in metallic layers on semiconductor surfaces.%%%This is a theoretical project comprised of a number of related topics including ones dealing with the interactions of small objects (electrons, atoms, molecules) with larger ones (surfaces and quantum dots). Included are fundamental issues related to nanoscale phenomena and nanodevices.***

语言这个理论项目由几个相关的主题组成。其中之一是微观和介观物体之间的长程和短程相互作用的密度泛函理论。另一种着眼于电子耗散、非绝热电荷转移以及原子和分子物种在固体表面移动和反应的势和速率的理论。第三个组成部分是利用之前开发的非绝热电荷转移技术在量子点中的传输理论。这项工作与金属和表面绝缘体的性质有关。它探索了被视为电子、原子或分子物种在表面附近运动的新物理现象。这些包括非常微妙的、长期的和技术上重要的问题，即小天体之间以及小颗粒和表面之间的力问题。它们包括复杂的电荷转移、耗散和能量转移问题，以及它们何时发生以及如何发生。最后，我们试图了解单电子晶体管中的输运，单电子晶体管由嵌入在半导体表面的金属层中的非常小的人造结构组成。这是一个由许多相关主题组成的理论项目，其中包括处理小对象(电子、原子、分子)与较大对象(表面和量子点)的相互作用的主题。包括与纳米尺度现象和纳米设备有关的基本问题。