Coulomb Drag between One-Dimensional Electron Systems: Probing the Luttinger Liquid State

一维电子系统之间的库仑阻力：探测 Luttinger 液态

• 批准号: 0244489
• 负责人: Richard Newrock
• 金额: --
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-04-15 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0244489&HistoricalAwards=false
• 关键词: Coulomb; Drag; between; Dimensional; Electron

This individual investigator award supports an investigation of the behavior of electrons confined in one-dimensional wires. The project consists of a comprehensive experimental investigation of Coulomb drag between interacting quantum wires in the ballistic transport regime. This relatively unexplored phenomenon will be used as a tool to experimentally probe the Luttinger liquid (LL) behavior of interacting, strongly correlated, one-dimensional electron systems. The Coulomb drag resistance and the shot noise will be measured as a function of a number of sample and environmental parameters, such as sample length, inter-wire separation, Fermi energy, temperature, applied magnetic field, etc. The dual-wire samples will be fabricated from high-mobility AlGaAs/GaAs heterostructures and quantum wells using high-resolution, electron beam lithography. The work is expected to lead to new and important results, proving that the LL state exists in condensed matter and establishing the applicability boundaries of the Fermi liquid theory. The project involves training graduate students in nanoscience and nanotechnology. It includes the participation of undergraduate students in the research. It brings together researchers, educators, and students, leading to an integration of research, learning, and training. In addition, a strong commitment to educational outreach K-16 and teacher programs is integrated into the research agenda. This individual investigator award supports an investigation of the behavior of electrons confined to very narrow, essentially one-dimensional wires. The project consists of a comprehensive experimental investigation, supported by theoretical analysis, of the interaction forces between two closely spaced and interacting one-dimensional wires in a regime where very little scattering of the electrons occurs. These relatively unexplored interactions can be used as a tool to probe the behavior of confined interacting electron systems. The resistance and electronic noise will be measured as a function of a number of sample and environmental parameters, such as sample length, inter-wire separation, energy, temperature, applied magnetic field, etc. The behavior of electron systems in one dimension is an important issue in condensed matter physics. As the dimensions of technological interest become smaller, it becomes more important to understand such systems. This research is expected to lead to a better understanding of such small systems. This project involves the training of graduate student researchers in nanoscience and nanotechnology as well as the participation of undergraduate students in the research. It brings together researchers, educators, and students, leading to an integration of research, learning, and training. In addition, a strong commitment to educational outreach K-16 and teacher programs is integrated into the research agenda.

这个个人研究者奖支持在一维线限制的电子行为的调查。 该项目包括一个全面的实验研究相互作用的量子线之间的库仑阻力在弹道传输制度。 这种相对未被探索的现象将被用来作为一种工具，实验探测相互作用，强关联，一维电子系统的Luttinger液体（LL）的行为。库仑阻力和散粒噪声将作为一个功能的一些样品和环境参数，如样品的长度，线间分离，费米能量，温度，施加的磁场等双线样品将从高迁移率AlGaAs/GaAs异质结构和量子威尔斯使用高分辨率，电子束光刻制造。 这项工作有望导致新的和重要的结果，证明LL态存在于凝聚态物质中，并建立费米液体理论的适用范围。 该项目涉及培训纳米科学和纳米技术方面的研究生。 它包括本科生参与研究。 它汇集了研究人员，教育工作者和学生，导致研究，学习和培训的整合。 此外，对教育推广K-16和教师计划的坚定承诺被纳入研究议程。这个个人研究者奖支持对限制在非常窄的，基本上是一维的电线中的电子行为的研究。 该项目包括一个全面的实验研究，理论分析的支持下，两个紧密间隔和相互作用的一维线之间的相互作用力，在一个政权，很少发生散射的电子。 这些相对未被探索的相互作用可以被用作探测受限相互作用电子系统的行为的工具。电阻和电子噪声将被测量作为一个功能的一些样品和环境参数，如样品长度，线间分离，能量，温度，施加的磁场等的电子系统在一维的行为是一个重要的问题，在凝聚态物理。 随着技术利益的维度变得越来越小，理解这样的系统变得更加重要。 这项研究预计将导致更好地了解这样的小系统。该项目涉及纳米科学和纳米技术研究生的培训以及本科生参与研究。 它汇集了研究人员，教育工作者和学生，导致研究，学习和培训的整合。 此外，对教育推广K-16和教师计划的坚定承诺被纳入研究议程。