MRI: Acquisition of Magnetic Field System with SQUID for Material Research

MRI：使用 SQUID 采集磁场系统用于材料研究

• 批准号: 0421366
• 负责人: Jeremy Qualls
• 金额: --
• 依托单位: The University of Texas Rio Grande Valley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-15 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0421366&HistoricalAwards=false
• 关键词: MRI; Acquisition; Magnetic; Field; System

In this Major Research Instrumentation Program (MRI) proposal, the University of Texas-Pan American (UTPA) is requesting funding to acquire a high field magnet system. Acquisition of this system will advance the understanding of novel molecular materials and improve educational opportunities for Hispanic students at UTPA. Molecular materials are of intense worldwide interest, initiating a renaissance in the field of magnetism and transport studies. These systems have been considered by many to be the materials of the future due to their wide range of properties and the relative ease to tailor those abilities. The intellectual merit of this work includes understanding the underlying crystal structural relationship to observed electronic and magnetic properties in three classes of molecular conductors with potential for device construction and development of basic science. This work will collectively merge aspects of material science at UTPA while integrating and training students. The broader impact of this project includes: 1.) enhanced cooperation between scientists and engineers at UTPA and other institutions without such capabilities 2.) promotion of graduate and undergraduate education of Hispanic students interested in material science, and 3.) the development of instructional strategies for scientists and engineers teaching in a predominantly Hispanic institution. The high magnetic field system will allow for long-term usage beyond the lifetime of the grant and its automated software allows for relative ease of student integration.In this Major Research Instrumentation Program (MRI) proposal, the University of Texas-Pan American (UTPA) is requesting funding to acquire a 17 Tesla superconducting magnet system with vapor helium recovery capabilities and a SQUID insert. A number of high field techniques, including torque and SQUID magnetometry, AMRO, quantum oscillatory phenomena such as De Haas-van Alphen and Shubnikov-de Haas effects, will be employed using the requested magnet system to systematically probe the electrical transport and magnetic properties (including pressure and temperature dependence). Three classes of molecular systems will be investigated; this includes organic charge transfer salts (CTS), low dimensional molecular magnets (MM), and nanoporous metal-organic frameworks (MOFs). Two systems, CTS and MOFs are currently being produced at UTPA, whereas the MM systems are being synthesized at Eastern Washington University. This proposal provides the infrastructure necessary to investigate the underlying crystal structural relationship to observed electronic and magnetic properties in molecular systems. Acquisition of this system will allow for the advancement of the understanding of magnetic and transport behavior in novel molecular materials and significant improves the educational and training opportunities for Hispanic students at UTPA.

在这项重大研究仪器计划（MRI）提案中，德克萨斯大学泛美分校（UTPA）正在申请资金以获得高场磁体系统。该系统的获得将促进对新型分子材料的理解，并改善UTPA西班牙裔学生的教育机会。分子材料在世界范围内引起了强烈的兴趣，引发了磁学和输运研究领域的复兴。这些系统已被许多人认为是未来的材料，因为它们具有广泛的特性，并且相对容易定制这些能力。这项工作的智力价值包括了解潜在的晶体结构关系，观察到的电子和磁性的三个类的分子导体与潜在的设备建设和基础科学的发展。这项工作将共同合并UTPA材料科学的各个方面，同时整合和培训学生。 该项目的主要影响包括：（1）加强UTPA和其他没有这种能力的机构的科学家和工程师之间的合作促进对材料科学感兴趣的西班牙裔学生的研究生和本科生教育，以及3.）在一个以西班牙裔为主的机构中为科学家和工程师教学制定教学策略。高磁场系统将允许长期使用超过了赠款的生命周期，其自动化软件允许相对容易的学生整合。在这个重大研究仪器计划（MRI）的建议，得克萨斯州泛美大学（UTPA）正在申请资金，以获得一个17特斯拉超导磁体系统与蒸汽氦回收能力和SQUID插入。一些高场技术，包括扭矩和SQUID磁强计，AMRO，量子振荡现象，如德哈斯-范阿尔芬和舒布尼科夫-德哈斯效应，将采用所要求的磁体系统，系统地探测电输运和磁性能（包括压力和温度依赖性）。将研究三类分子系统;这包括有机电荷转移盐（CTS），低维分子磁体（MM）和纳米多孔金属有机框架（MOFs）。两个系统，CTS和MOFs目前正在UTPA生产，而MM系统正在合成东华盛顿大学。这一建议提供了必要的基础设施，以调查潜在的晶体结构的关系，观察到的电子和磁性的分子系统。该系统的收购将允许在新的分子材料的磁性和运输行为的理解的进步，并显着提高UTPA西班牙裔学生的教育和培训机会。