Technical Note and Brief Overview of the Materials Science and Technology along with Designing Aspects for Development of Spintronic Devices with Optimum Efficiency

One of the major challenges in designing and fabricating Spintronic devices is the choice of both, Materials and the Technology, along with understanding the intricacies of the Designing aspects. In this communication, we have attempted to briefly discuss these factors, with an aim to draw the attention of the Materials Scientists and Technologists to this serious challenge, in the direction of which, though a lot of research and development work has been done, still needs more concerted efforts to be made in order to make the Spintronic devices that can offer good efficiency for maximizing their usefulness.

用离子束技术研究稀磁半导体和纳米磁性材料

综述用离子束技术研究稀磁半导体和纳米磁性材料的构建、调控和改性的进展和现状。离子束注入是优选的构建和调控方法,测试结果表明在GaN和ZnO等新半导体光电材料中注入Mn、Ni和Co等过渡金属离子可得到低温和室温下的铁磁性。离子束分析技术给出这些新材料薄膜的微结构信息,透射电镜下观察到过饱和剂量Mn+注入GaN形成的纳米磁性颗粒。

离子束诱导微纳物质相变机制研究立项报告

以准一维碳纳米管、半导体硅纳米线为基础,通过不同荷能粒子束与准一维纳米管、半导体硅纳米线和固体纳米薄膜材料作用过程及相变和性能研究,揭示荷能粒子束与纳米结构作用过程及诱导相变机制,诠释荷能粒子作用下纳米材料中的一些新现象、新规律和新性能,获得具有特殊性能的碳基和硅基新型准一维纳米材料;揭示纳米材料加工、材料结构和性能的荷能粒子束调控的基本原理和粒子束驱动成形的规律,建立利用荷能粒子束在纳米尺度内对材料结构进行精确调控的技术;建立荷能粒子作用下微纳结构物质的辐照损伤理论模型、固体纳米结构的形成理论。利用粒子束技术可控构建具有潜在重要应用前景的2~3种碳基和硅基新型准一维功能纳米线,实现对功能纳米结构的精细调控。