Electronic and Magnetic Order in Atomic Clusters

原子团簇中的电子和磁序

• 批准号: 9412618
• 负责人: Louis Bloomfield
• 金额: $ 45万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-01-15 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9412618&HistoricalAwards=false
• 关键词: Electronic; Magnetic; Order; Atomic; Clusters

9412618 Bloomfield The objective of the program is to develop an atomic and molecular viewpoint for electronic ordering in solids through the study of atomic clusters. By examining the electronic and magnetic properties of clusters of atoms from two to five hundred atoms using beam and photodetachment techniques, it is possible to examine the transition from simple atomic behavior to that observed in bulk solids. % % % This project seeks an atomic and molecular picture for electronic ordering in solids through the study of atomic clusters. As they evolve in size from 2 to 500 atoms, clusters of atoms make a transition from molecules to small solids or liquids. By studying the development of magnetic and electronic properties in small particles, the research will improve the understanding of the relationship between atoms, molecules, and condensed matter. Such studies will provide understanding of the molecular origins of metallic and nonmetallic behaviors as well as metal-nonmetal transitions. ***

该计划的目标是通过对原子团簇的研究，为固体中的电子排序发展原子和分子的观点。通过使用光束和光分离技术检查从200到500个原子组成的原子簇的电子和磁性，可以检查从简单原子行为到大块固体中观察到的转变。这个项目通过对原子团簇的研究，寻求固体中电子有序的原子和分子图谱。当原子的大小从2个原子发展到500个原子时，原子簇从分子转变为小的固体或液体。通过研究小颗粒中磁性和电子特性的发展，这项研究将提高对原子、分子和凝聚态物质之间关系的理解。这样的研究将提供对金属和非金属行为以及金属-非金属转变的分子起源的理解。＊＊＊