Characterization of the Growth, Structure, and Magnetic Ordering of Metal Oxide Thin-Films and Superlattices

金属氧化物薄膜和超晶格的生长、结构和磁有序的表征

• 批准号: 9206870
• 负责人: David M. Lind
• 金额: $ 37.5万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9206870&HistoricalAwards=false
• 关键词: Characterization; Growth; Structure; Magnetic; Ordering

The relationship between crystalline structure and magnetic ordering is being studied in single crystal metal oxide superlattices of Fe3O4 and NiO. Superlattices of these materials show strong lattice and chemical modulation coherence, sharp interfaces, an interfacial strain that couples strongly with other properties of the superlattices, magnetic ordering which is strongly layer thickness dependent, and, finally, a highly anisotropic electron conductivity. Extended study of these and similar layered magnetic structures should lead us to an understanding of the fundamental physical mechanisms that lead to magnetic ordering, as well as the interplay between electronic and structural ordering in magnetic materials.

晶体结构与磁性的关系 单晶金属氧化物的有序化正在研究中， Fe3O4和NiO的超晶格。 这些材料的超晶格 显示出强的晶格和化学调制相干性、尖锐 界面，一种与其他界面强烈耦合的界面应变， 超晶格的性质，磁有序， 强烈的层厚度依赖，最后，一个高度 各向异性电子传导率 深入研究这些问题， 类似的分层磁性结构应该会引导我们找到一个 理解导致 磁有序，以及电子和 磁性材料中的结构有序