Optical and Far Infrared Studies of Semiconductor Heterostructures

半导体异质结构的光学和远红外研究

• 批准号: 9208400
• 负责人: Margaret Dobrowolska
• 金额: $ 47万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9208400&HistoricalAwards=false
• 关键词: Optical; Far; Infrared; Studies; Semiconductor

This project deals with electronic and magnetic properties of semiconductor heterostructures. These materials are being studied with far infrared (FIR) and visible spectroscopy. The heterostructures are fabricated in-house. The project has three components. First is FIR magnetospectroscopy of interfaces between III-V semiconductors and II-VI based diluted magnetic semiconductors, in order to determine how the two-dimensional electron gas on the III-V side of the interface is affected by proximity to magnetic electron wave functions from a DMS material. Second, the fundamental electronic and magentic properties of digital alloys (ultra-short-period superlattices grown monolayer- by-monolayer) are being studied by spectroscopy. Finally, the program concentrates on optical studies of DMS materials in which band tuning can be achieved by Zeeman adjustment of the band alignment at interfaces.

该项目涉及的电子和磁性的性质， 半导体异质结构 这些材料正在研究中 远红外（FIR）和可见光谱。 的 异质结构在内部制造。 该项目有三 件. 首先是界面之间的FIR磁谱 III-V族半导体和基于II-VI族的稀磁 半导体，以确定如何二维 在界面的III-V族侧上的电子气受以下影响： 接近来自DMS材料的磁电子波函数。 第二，基本的电子和磁性的性质， 数字合金（超短周期超晶格生长单层- 通过单分子层）正在通过光谱学进行研究。 最后 该计划专注于DMS材料的光学研究，其中 频带调谐可以通过频带的塞曼调整来实现 接口对齐。