Carrier Spin Dynamics and Device Applications in Carbon Nanotube

摘要：本研究的目的是探索碳纳米管中载流子的自旋依赖特性及其潜在的器件应用。该方法基于碳纳米管中载流子自旋弛豫和输运动力学的理论和数值（从头算）建模。导致新型自旋电子纳米器件的特定概念/结构也将超越当前的缩放限制。知识价值：本研究将提供(1)对碳纳米管中载流子自旋动力学机制的理论认识；(2)设计利用独特自旋输运特性的新型器件架构；(3)可扩展到大规模过程的自旋器件仿真方法的连贯层次结构。总的来说，关键的结果将是基于碳纳米管中载流子自旋动力学的先进自旋电子器件的可行性的基本描述。更广泛的影响：通过跨学科的培训努力，将培养出具有专长的新一代科学家和工程师，他们将不局限于单一学科，而是训练他们用超越科学和工程学科之间传统障碍的方法，以广阔的视野来解决复杂问题。它将建立在主要研究人员强有力的外展和公共教育记录的基础上，包括纳米技术的实时和基于网络的教程，与高中学生和他们的老师一起参加暑期项目，以及参与关于纳米技术的公共影响的国家委员会。如果成功，纳米器件也可以提供显著的技术和经济效益。

Abstract- Carrier Spin Dynamics and Device Applications in Carbon Nanotubes The objective of this research is to explore spin dependent properties of the carriers in carbon nanotubes and their potential device applications. The approach is based on the theory and numerical (ab initio) modeling of carrier spin relaxation and transport dynamics in carbon nanotubes. Specific concepts/structures leading to a novel class of spintronic nano-devices will also be pursued beyond the current scaling limit. Intellectual merit: This research effort will provide (1) theoretical understanding of the mechanisms of carrier spin dynamics in carbon nanotubes; (2) design of novel device architectures that exploit the unique spin transport properties; (3) a coherent hierarchy of spin device simulation methods that can be scaled to large-scale processes. Overall, the key outcome will be a fundamental description of the feasibility of advanced spintronic devices based on carrier spin dynamics in carbon nanotubes. Broader impact: Through an interdisciplinary training effort, a new generation of scientists and engineers will be produced with expertise that is not limited to a single discipline, but rather who are trained to attack complicated problems with a broad outlook using methods that transcend traditional barriers between science and engineering disciplines. It will be built on the strong outreach and public education record of the principal investigators that includes live and web-based tutorials on nanotechnology, working with high school students and their teachers in summer programs, and participation in national committees on public implications of nanotechnology. If successful, pursued nano-devices could also offer significant technological and economical benefits.