Development of High Temperature Physical Property Measurement System for Probing Spin and Charge-Functionalized Thin-Film Materials

用于探测自旋和电荷功能化薄膜材料的高温物理性质测量系统的开发

• 批准号: 0216267
• 负责人: David Norton
• 金额: $ 16.15万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0216267&HistoricalAwards=false
• 关键词: Development; Temperature; Physical; Property; Measurement

A physical properties measurement system for characterizing transport and complex impedance properties at elevated temperatures will be developed. The primary function of this instrumentation is to elucidate the magnetic, electronic, and thermal properties of novel spin- and charge-functional materials through temperature and magnetic field-dependent measurements of transport and electromagnetic response. The proposed system will include a "micro-heater platen" technology to provide for the extended temperature range. Capabilities of the instrumentation will include AC susceptibility, dc magnetization, I-V, Hall measurements, thermal conductivity, and complex impedance in magnetic fields up to 7 Tesla over a temperature range of 4 to 700 K. Together with parallel efforts in materials and devices, this instrumentation will serve as a vehicle to educate students and post-graduates regarding transport and electromagnetic response in these materialsIn recent years, there has emerged a significant interest in the understanding and manipulation of charge and spin in a variety of electronic materials. In many cases, the spin/charge functionality extends well above room temperature. The instrumentation developed under this proposal will enable the magnetic, electronic, and thermal properties of novel spin- and charge-functional materials to be probed through an extensive temperature range. Together with parallel efforts in materials and devices, it will serve as a vehicle to educate students and post-graduates regarding transport and electromagnetic response in these materials.

将开发一种用于表征高温下输运和复杂阻抗特性的物理特性测量系统。该仪器的主要功能是通过对输运和电磁响应的温度和磁场相关测量来阐明新型自旋和电荷功能材料的磁、电子和热特性。拟议的系统将包括一个“微加热板”技术，以提供更大的温度范围。该仪器的功能将包括交流磁化率、直流磁化、I-V、霍尔测量、热导率和复杂阻抗，温度范围为4至700 K，磁场高达7特斯拉。与材料和器件方面的平行努力一起，该仪器将作为教育学生和研究生关于这些材料中的传输和电磁响应的工具。近年来，人们对各种电子材料中的电荷和自旋的理解和操纵产生了极大的兴趣。在许多情况下，自旋/电荷功能扩展远高于室温。根据该提案开发的仪器将能够在广泛的温度范围内探测新型自旋和电荷功能材料的磁性，电子和热性能。与材料和设备方面的平行努力一起，它将作为教育学生和研究生关于这些材料的运输和电磁响应的工具。