Correlation and Localization in 2D and 3D Electron Systems

2D 和 3D 电子系统中的关联和定位

• 批准号: 9000553
• 负责人: H. Dennis Drew
• 金额: $ 20.1万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9000553&HistoricalAwards=false
• 关键词: Correlation; Localization; 2D; 3D; Electron

Far infrared magneto-optical and magneto-transport studies of interacting electron gas systems will be investigated. The main thrust of this research will be on quasi-3 dimensional (Q3D) electron gas based on wide parabolic well structures grown epitaxially with gallium-aluminum arsenide heterostructures. The research involves the study of Q3D magneto-plasmons in these systems with the ultimate goal being the discovery of the Wigner crystal. The plans also include the study of magneto-plasmons in the two-dimensional electron gas system because of magneto-rotons associated with the fractional quantum Hall effect. The equilibrium properties of the upper Hubbard band for silicon in doped gallium arsenide will also be studied, as will impurity band formation in two-dimensional delta-doped gallium arsenide.

将研究相互作用电子气系统的远红外磁光和磁输运。这项研究的重点将是基于外延生长的宽抛物面势垒结构的准三维(Q3D)电子气。这项研究涉及到对这些系统中Q3D磁等离子体的研究，最终目标是发现Wigner晶体。这些计划还包括研究二维电子气系统中的磁等离子体，因为它与分数量子霍尔效应有关。还将研究掺砷化镓中硅的上Hubbard带的平衡性质，以及二维三角洲掺杂砷化镓中杂质带的形成。