U.S.-Brazil Cooperative Research: Magnetic Response of ThinMetallic Films and Multilayers

9600016西北大学的埃利斯·唐纳德·埃利斯和约翰·凯特森将与由伊莱莎·巴乔-赛托维奇领导的巴西佩斯奎萨斯费西卡斯中心的工作人员合作。他们将在每个机构使用最先进的计算和实验技术，对金属薄膜和多层膜的磁响应进行建模和现场实验研究。将利用同步辐射的特殊特性来研究薄磁层和多层膜的总体磁响应随其局部和全球环境的变化。作为研究的一部分，同步加速器穆斯堡尔光谱技术将被开发和应用，完善一种新的、快速的材料科学技术。这种国际合作建立在10多年的合作努力和研究的基础上，经历了理论和实验工作的几个阶段。在过去的几年里，CBPF获得了建设磁性薄膜实验室的资金，现在提供了大量的能力，用于气相沉积有序和非晶膜、X射线表征、Moessbauer、核磁共振和微扰角相关光谱。****

9600016 Ellis Donald Ellis and John Ketterson of Northwestern University will collaborate with workers at the Centro Brasileiro de Pesquisas Fisicas (CBPF), led by Elisa Baggio-Saitovitch. They will use state-of-the-art computational and experimental techniques at each institution to model and perform in situ experimental studies of the magnetic response of thin metallic films and multilayers. The exceptional characteristics of synchrotron radiation will be exploited to study the evolution of the overall magnetic response of thin magnetic layers and multilayers as a function of their local and global environment. As part of the investigation, the technique of synchrotron Moessbauer spectroscopy will be developed and applied, perfecting a new and speedy technique for materials science at large. This international collaboration builds on over 10 years of cooperative effort and research, moving through several phases of theoretical and experimental work. CBPF has in the last few years received funding to build a Magnetic Film Laboratory, now providing extensive capabilities for vapor deposition of ordered and amorphous films, x-ray characterization, and Moessbauer, NMR and perturbed angular correlation spectroscopy. ****