Experimental Studies of the Dynamics of Electrons in Disordered Metals

无序金属中电子动力学的实验研究

• 批准号: 9020816
• 负责人: John Carini
• 金额: $ 19.5万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-04-15 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9020816&HistoricalAwards=false
• 关键词: Experimental; Studies; Dynamics; Electrons; Disordered

This research represents an investigation of the dynamics of electrons in disordered metals where the electrical properties are determined primarily by quantum mechanical interference effects. The objective is to reach an understanding of the frequency- dependent conductance in the regime where the measurement frequency is greater than the quantum dephasing rate. Disordered two- and three-dimensional samples and also submicron samples. The electrical conductance and susceptance will be measured for frequencies from dc to 20 GigaHertz, for temperatures down to 0.02 Kelvin, and for magnetic fields up to 10 tesla. The sample composition and geometry will also be varied. In addition to adding the determination of a new experimental parameter in the study of quantum transport these studies are in an important regime for the technology of mesoscopic systems.

这项研究代表了一个动态的调查， 无序金属中的电子， 主要由量子力学干涉效应决定。 我们的目标是了解频率- 在测量频率 大于量子退相速率。 混乱的两个-和 三维样品和亚微米样品。 的 将测量电导和磁阻， 频率从直流到20千兆赫兹，温度低至0.02 开尔文，磁场高达10特斯拉。 样品 组成和几何形状也将变化。 除了 增加了一个新的实验参数的确定， 量子输运的研究这些研究是在一个重要的制度 用于介观系统的技术。