RUI: Linear and Nonlinear Excitations in Layered Antiferromagnets and Nanostructured Magnets

9703783枚邮票这笔资金用于资助一所以本科生为主的机构的一位年轻理论家的工作。这项资助的研究项目是该PI关于磁性薄膜和外延生长的磁性超晶格中磁矩的动力学性质的开创性工作的继续。在这里，PI提出了一种可能的新方法，通过检查磁化壁共振的性质来确定薄膜之间的交换耦合。其他项目包括：(1)结构缺陷对薄膜磁序和磁相变的作用；(2)量子点阵列中动态非线性效应的研究。这位年轻的PI在一所以本科生为主的机构工作，他被支持从事薄膜和非常小颗粒中的磁性理论的工作。一些研究集中在有限频率行为上。PI表明，在相邻的薄膜中，人们可以通过研究磁化壁相对于彼此的运动来收集关于磁相互作用的信息。他正计划发展一种理论形式主义来描述极小颗粒阵列中的高功率吸收。最后，他还计划研究结构缺陷与薄膜的磁序和磁性相变之间的关系。***

9703783 Stamps This grant supports the work of a young theorist at a predominantly undergraduate institution. The research projects in this grant are a continuation of seminal work by this PI on dynamical properties of magnetic moments in magnetic thin films and epitaxially grown magnetic superlattices. Here the PI is proposing work on a possible new way of determining the exchange coupling between thin magnetic films by examining the properties of domain wall resonance. Other projects consist of: (1) Role of structural defects on the magnetic order and magnetic phase transition in thin films and (2) study of dynamic nonlinear effects in arrays of quantum dots. %%% This young PI, at a predominantly undergraduate institution, is being supported to work on the theory of magnetism in thin films and very small grains. Some of the research focuses on finite frequency behavior. The PI suggests that one can gather information about the magnetic interactions by studying the motion of domain walls with respect to each other, in adjacent thin films. He is planning to develop a theoretical formalism to describe the high power absorption in arrays of very small grains. Finally he is also planning to study the relationship between structural defects and the magnetic order and magnetic phase transitions in thin films. ***