权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Acquisition of 20 Tesla Magnet System

收购 20 特斯拉磁铁系统

基本信息

批准号：
9413708
负责人：
S. James Allen
金额：
$ 38万
依托单位：
University of California-Santa Barbara
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1994
资助国家：
美国
起止时间：
1994-09-01 至 1996-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9413708&HistoricalAwards=false
关键词：
Acquisition 20 Tesla Magnet System

项目摘要

A 20 Tesla superconducting magnet system and a Fourier Transform Infrared (FT-IR) spectrometer will be acquired with funds from the Academic Research Infrastructure Program. The magnet system will be utilized in conjunction with the UC-Santa Barbara free-electron laser, a femto-second optical laboratory, an existing dilution refrigerator, and the FT-IR spectrometer to explore nonlinear and linear magneto-optics and magneto-transport in scientifically and technologically important systems. The research focuses on: nonlinear magneto-transport in the terahertz frequency regime associated with quantum wells and superlattices in semiconductors; saturation and relaxation in semiconductor nanostructures in large magnetic field; linear and nonlinear spectroscopy of vortex cores in high temperature superconductors; magneto-spectroscopy of self-organized quantum dots; spectroscopy of quantum wire superlattices; magneto-luminescence and magneto-absorption experiments in spin-superlattices; quantum hall effects in mesoscopic structures; and magneto-transport and the metal-insulator transition in conducting polymers. An acquired 20 Tesla superconducting magnet system, used in conjunction with a free-electron laser, a femto-second optical laboratory, an existing dilution refrigerator, and a new acquired Fourier transform infrared spectrometer, will be used to study a range of topics in the magneto-optic and magneto-transport areas concerning semiconductor superlattices, quantum wells and quantum dots as well as high temperature superconductors, one-dimensional conducting polymers, and spin superlattices.

学术研究基础设施计划的资金将购买一套 20 特斯拉超导磁体系统和一台傅里叶变换红外 (FT-IR) 光谱仪。该磁体系统将与加州大学圣巴巴拉分校自由电子激光器、飞秒光学实验室、现有稀释制冷机和傅里叶变换红外光谱仪结合使用，以探索具有重要科学和技术意义的系统中的非线性和线性磁光和磁输运。研究重点是：与半导体量子阱和超晶格相关的太赫兹频率范围内的非线性磁输运；大磁场中半导体纳米结构的饱和和弛豫；高温超导体涡核的线性和非线性光谱；自组织量子点的磁谱学；量子线超晶格的光谱学；自旋超晶格中的磁致发光和磁吸收实验；介观结构中的量子霍尔效应；以及导电聚合物中的磁输运和金属-绝缘体转变。购买的20特斯拉超导磁体系统，与自由电子激光器、飞秒光学实验室、现有的稀释制冷机和新购买的傅里叶变换红外光谱仪结合使用，将用于研究磁光和磁输运领域有关半导体超晶格、量子阱和量子点的一系列主题以及高温超导体、一维导电聚合物和自旋超晶格。