CAREER: Silicon Spintronics

ECCS-0746757Ian Appelbaum，美国特拉华州大学本研究的目的是从实验上理解发展硅基自旋电子学所需的必要的器件物理概念。这是因为需要证明一种电子逻辑处理方案，以替代目前使用的基于电荷的物理范例，目前已达到其规模极限。该方法是在超高真空晶片键合硅器件结构中使用自旋极化热电子技术来检测自旋。所提出的活动的智能优点来自于使用热电子技术来绕过由硅制造的自旋电子器件的令人望而却步的限制。这允许对基本的自旋输运和材料参数进行实验探索，以实现硅自旋电子学。研究组件的广泛影响源于利用现有的硅基电子技术的技术和经济基础设施，以扩展我们目前技术与硅自旋电子学的性能趋势。自旋电子器件能够实现低功耗、即开即用的电子设备所提供的优势将使设备的便携性得到提高，鉴于当今能源成本及其对环境的影响，这一点尤为重要？S。综合教育和推广部分的更广泛影响是通过培训研究生(包括那些在工程学中代表性不足的学生)在科学和工程的不同方面，包括半导体器件设计、工艺、测量和自旋电子学来实现的？所有这些对于一个日益以技术为基础的经济来说都是至关重要的。

AbstractECCS-0746757Ian Appelbaum, University of DelawareThe objective of this research is to experimentally understand the necessary device physics concepts required for development of Silicon-based spintronics. This is motivated by the need to demonstrate a scheme for electronic logic processing alternative to the presently-used charge-based physical paradigm now reaching its scaling limits. The approach is to use spin-polarized hot-electron techniques for spin detection in an ultra-high-vacuum wafer-bonded Silicon device structure.Intellectual Merit of the proposed activity flows from the use of hot-electron techniques to circumvent prohibitive limitations for spintronics devices made from Silicon. This allows experimental exploration of the fundamental spin transport and materials parameters to enable Si spintronics.Broader Impacts of the research component are derived from leveraging the existing technological and economic infrastructure of Si-based electronics to extend performance trends of our present technology with Si spintronics. The advantages afforded by spintronics devices enabling lower-power, instant-on electronics will allow increased device portability and are especially important in light of today?s increasing energy costs and its environmental impact. The Broader Impacts of the integrated educational and outreach component are achieved through training graduate students (including those underrepresented in engineering) in diverse aspects of science and engineering including semiconductor device design, processing, measurement, and spintronics ? all these are essential for an increasingly technology-based economy.