CAREER: Tuning Transport in Nanostructures

非技术摘要这个职业项目旨在1）理解和操纵纳米结构中的导电性，2）通过将他们暴露于尖端的纳米科学来吸引未被代表的群体。实验将在三种材料上进行-碳纳米管，铟砷纳米线和石墨烯。这些都展示了新颖的物理学，并被认为是纳米级电子应用的主要候选者。该研究将使用创新的制造和测量技术，例如局部电场和可以可控应变的衬底，以了解哪些因素最影响纳米材料中的电子传输。拟议中的研究也将为新型电子设备奠定基础。通过注重征聘妇女和少数群体并使其参与研究活动，将教育和研究结合起来。具体的教育任务包括在研究项目中指导代表性不足的本科生，并在针对妇女和少数民族的会议上组织特别的纳米科学会议。该项目将培养有才华的科学家，并帮助提高我们的社会的科学知识基础。技术摘要这个职业生涯项目的目标是1）显着提高纳米结构中的传输特性的理解和操作，2）招募代表性不足的群体，以物理学，通过暴露他们的尖端纳米科学。实验将在三种科学和技术相关的材料上进行;碳纳米管，InAs纳米线和石墨烯。该研究将利用本地探针和新的调谐参数来回答有关纳米结构中传输的基本问题，特别是关于电子-电子相互作用，能带结构，自旋和电荷分布以及无序之间的相互作用。创新的测量和制造工具-如量子点接触来检测自旋，隧道探针来测量能量分布，电场和柔性基板来调整电导和带隙-将被开发，以允许基本属性的精确研究，并为新型可调设备奠定基础。教育和研究通过注重征聘妇女和少数群体并使其参与研究而得到整合。具体的教育任务包括指导代表性不足的本科生，并在针对妇女和少数民族的重大会议和会议上组织纳米科学会议。因此，该计划将有助于增加未来有才华的科学家的数量，并有助于改善我们社会的科学知识基础。

NON-TECHNICAL ABSTRACTThis CAREER project seeks to 1) understand and manipulate electrical conduction in nanostructures, and 2) attract under-represented groups to physics by exposing them to cutting edge nanoscience. Experiments will be performed on three materials - carbon nanotubes, Indium-Arsenic nanowires, and graphene. These have all demonstrated novel physics and are considered leading candidates for nanoscale electronics applications. The research will use innovative fabrication and measurement techniques, such as local electric fields and substrates that can be controllably strained, to understand what factors most influence electron transport in nanoscale materials. The proposed research will also lay the groundwork for novel electronic devices. Education and research are integrated through a focus on recruiting and involving women and minorities in research activities. Specific educational tasks include mentoring under-represented undergraduates in research projects, and organizing special nanoscience sessions at conferences targeting women and minorities. The project will train talented scientists and help improve the science knowledge base of our society.TECHNICAL ABSTRACTThe goals of this CAREER project are to 1) significantly improve the understanding and manipulation of transport properties in nanostructures, and 2) recruit under-represented groups to physics by exposing them to cutting-edge nanoscience. Experiments will be performed on three scientifically and technologically relevant materials; carbon nanotubes, InAs nanowires, and graphene. The research will utilize local probes and novel tuning parameters to answer basic questions about transport in nanostructures, particularly regarding the interplay between electron-electron interactions, band structure, spin and charge distributions, and disorder. Innovative measurement and fabrication tools - such as quantum point contacts to detect spins, tunneling probes to measure energy distributions, and electric fields and flexible substrates to tune conductance and band gaps - will be developed to allow for precise studies of fundamental properties and also to lay the groundwork for novel tunable devices. Education and research are integrated through a focus on recruiting and involving women and minorities in research. Specific educational tasks include mentoring under-represented undergraduates, and organizing nanoscience sessions at major conferences and meetings targeting women and minorities. The plan will thus help increase the future pool of talented scientists and help improve the scientific knowledge base of our society.