Magnetic and electronic excitations in low-dimensional and nanostructured materials

低维和纳米结构材料中的磁和电子激发

• 批准号: RGPIN-2017-04429
• 负责人: Cottam, Michael
• 金额: $ 2.19万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633350
• 关键词: Magnetic; electronic; excitations; low; dimensional

Research on magnetic materials with one or more lengths in the submicron range, as in low-dimensional nanostructures and arrays, is driven by their immense technological potential (for high-frequency devices, magnetic memories, fast switches, etc). For theory there is a need to understand at a fundamental level the dynamical processes on these length scales. This provides the primary motivation for this proposed theoretical research on the collective magnetic excitations (or waves) together with the electronic excitations. Taking into account the challenging effects due to surfaces and interfaces is important, since nanostructured magnetic materials may display novel characteristics that are absent in their bulk constituent materials.

对一种或多种长度在亚微米范围内的磁性材料的研究，如在低维纳米结构和阵列中，受到其巨大的技术潜力(用于高频设备、磁存储器、快速开关等)的推动。从理论上讲，有必要在基本水平上理解这些长度尺度上的动力过程。这为我们提出的关于集体磁激发(或波)和电子激发的理论研究提供了主要的动机。考虑到表面和界面的挑战性效应是重要的，因为纳米结构磁性材料可能显示出其块体组成材料所不具备的新特性。