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.

在亚微米范围内具有一个或多个长度的磁性材料的研究，如在低维纳米结构和阵列中，是由它们巨大的技术潜力驱动的（用于高频设备，磁存储器，快速开关等）。就理论而言，有必要在基本水平上理解这些长度尺度上的动态过程。这就提供了本文提出的磁集体激励（或波）与电子激励的理论研究的主要动机。考虑到由于表面和界面而产生的具有挑战性的影响是很重要的，因为纳米结构磁性材料可能会显示出在其大块组成材料中不存在的新特性。