CAREER: Ion Beam Assisted Deposition of Magnetoresistive Films

本CAREER研究计划的目的是确定离子束轰击对蒸发的坡莫合金-氮-铁薄膜的磁性和电学性能的影响。薄膜的电学、磁阻和磁性能被测量为离子种类、通量和能量、衬底温度和沉积后退火处理的函数。表征了薄膜的微观结构，并将其与薄膜的电、磁性能联系起来。这项研究是与IBM阿尔马登研究中心的合作项目。教育目标包括电子、光学和磁性材料的课程和课程开发，以及本科生和研究生的研究监督、建议和教育推广。课程开发工作的重点是为电气和材料工程专业的学生提供一个跨学科的课程序列，在一个团队为基础的开放式设计实验室环境中进行电子材料加工。采用离子束轰击法对坡莫合金薄膜进行电子束蒸发，改善了磁碟机磁阻读头用薄膜的磁阻响应。；

The objective of this CAREER research program is to determine the effects of ion beam bombardment on the magnetic and electrical properties of evaporated Permalloy-nitrogen-iron thin films. The electrical, magnetoresistive and magnetic properties of the films are measured as a function of ion species, flux and energy, substrate temperature, and post-deposition annealing treatment. The microstructure of the films is characterized and correlated to the electrical and magnetic properties. This research is a collaborative project with IBM Almaden Research Center. The educational objectives include course and curriculum development in electronic, optical and magnetic materials, as well as undergraduate and graduate research supervision, advising, and educational outreach. The curriculum development efforts are focused on an interdisciplinary course sequence for electrical and materials engineering students in electronic materials processing in a team-based, open-ended design laboratory setting. %%% Ion beam bombardment during electron beam evaporation of Permalloy films is used to imp rove the magnetoresistive response of films used in magnetoresistive read heads in magnetic disk drives. ;