CAREER: Quantum Properties of Ultrasmall Homogeneous Superconducting Nanostructures

职业：超小型均质超导纳米结构的量子特性

• 批准号: 0134770
• 负责人: Alexey Bezryadin
• 金额: $ 45万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0134770&HistoricalAwards=false
• 关键词: CAREER; Quantum; Properties; Ultrasmall; Homogeneous

This CAREER development award will support a young physics faculty member at the University of Illinois at Urbana-Champaign. The project is focused on fundamental problems of phase coherence in quasi-one-dimensional superconducting systems. A novel nanofabrication method developed by the PI will be applied in order to investigate fundamental properties of ultrasmall superconductors. The fabrication technique involves metallic decoration of single-wall carbon nanotubes and provides nanowires as thin as 5 nm in diameter. The following basic problems will be addressed:: (i) the interplay between the fermionic and bosonic mechanisms of superconductivity suppression in one dimension, (ii) the effects of a "dissipative" environment on quantum superconductor-insulator transitions, and (iii) macroscopic quantum effects in homogeneous superconducting nanostructures. In addition to training students and postdoctoral researchers, the project PI will develop a course on mesoscopic physics and modern nanotechnology for undergraduate and graduate students. The multidisciplinary character of modern nanotechnology will be emphasized in the course in order to attract students from different disciplines. The students will receive training and education in cutting edge research techniques that will prepare them for careers in academe, industry and government.This five-year CAREER development project will integrate research at the forefront of condensed matter physics and nanotechnology with an interdisciplinary educational program. In the research portion of the project, new techniques will be used to investigate the properties of superconducting systems with dimensions approaching 5 nanometers-a virtually unexplored size scale of great importance to the development of future generations of ultrafast computers and electronic devices. Novel experimental approaches will be used to study the behavior of superconducting materials in ultra-small structures. Understanding these phenomena may provide information useful for the technical development of highly integrated superconducting quantum computers. Nanoscale science and technology is becoming increasingly important in ensuring the nation's scientific leadership, and the project will also support the development of new coursework on mesoscopic physics and nanotechnology for undergraduate and graduate students at the University of Illinois. The students will receive training and education in cutting edge research techniques that will prepare them for careers in academe, industry and government.

这一职业发展奖将支持伊利诺伊大学厄巴纳-香槟分校的一名年轻物理教员。该项目的重点是准一维超导系统中的相位相干的基本问题。由PI开发的一种新的纳米加工方法将被用于研究超小超导体的基本性质。这种制造技术包括单壁碳纳米管的金属装饰，并提供直径可达5纳米的纳米线。将讨论以下基本问题：(I)一维超导抑制的费米子和玻色子机制之间的相互作用；(Ii)“耗散”环境对量子超导体-绝缘体转变的影响；(Iii)均匀超导纳米结构中的宏观量子效应。除了培养学生和博士后研究人员外，PI项目还将为本科生和研究生开发一门介观物理和现代纳米技术课程。本课程将强调现代纳米技术的多学科特性，以吸引来自不同学科的学生。这些学生将接受尖端研究技术方面的培训和教育，为他们在学术界、工业界和政府的职业生涯做好准备。这项为期五年的职业发展项目将把凝聚态物理和纳米技术的前沿研究与跨学科教育计划结合起来。在该项目的研究部分，将使用新技术来研究尺寸接近5纳米的超导系统的性质-这是一个几乎从未探索过的尺寸，对未来几代超高速计算机和电子设备的发展非常重要。新的实验方法将被用来研究超导材料在超小型结构中的行为。了解这些现象可能会为高度集成的超导量子计算机的技术发展提供有用的信息。纳米科学和技术在确保美国的科学领导地位方面正变得越来越重要，该项目还将支持伊利诺伊大学为本科生和研究生开发介观物理和纳米技术的新课程。这些学生将接受尖端研究技术方面的培训和教育，为他们在学术界、工业界和政府的职业生涯做好准备。