Acquisition of a Micro-Calorimeter Configured with a 10 T Split-Coil Magnet

获取配备 10 T 分裂线圈磁铁的微量热计

• 批准号: 9977522
• 负责人: Stephen Hill
• 金额: $ 14万
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9977522&HistoricalAwards=false
• 关键词: Acquisition; Micro; Calorimeter; Configured; 10

9977522HillFunding from the Major Research Instrumentation program will be used to acquire a micro-calorimeter system integrated with a 10 tesla split-coil superconducting magnet. The spilt coil configuration is required in order obtain magnetic fields at rotated at different orientations relative to the experimental probe. A range of projects will benefit significantly fromthe acquisition of this instrument. These projects, which will impact the research efforts of several groups at Montana State University, , include: i) thermodynamic studies of the unconventional (non-Fermi liquid) conducting states in quasi-one dimensional molecular conductors; ii) electronic specific heat of bulk quantum Hall systems; iii) thermodynamic investigations of magnetic relaxation processes in nano-scale magnetic clusters and molecules; iv) critical phenomena in ferroelectric and ferromagnetic perovskites; and v) the soliton contribution to the magnetic specific heat in two-dimensional magnets. All of the materials of interest are highly anisotropic and, therefore, necessitate studies for different magnetic field orientations. In addition, the magnet will be used in combination with other techniques for which the experimental probe cannot conveniently be rotated within a conventional axial magnet, for instance, electron paramagnetic resonance, nuclear magnetic resonance, dielectric and microwave conductivity measurements.Major Research Instrumentation funding is being used to obtain instrumentation that will be used to study a variety of materials that exhibit low-dimensionality. The instrument will have a great impact on the research infrastructure at the university as it will impact research projects from investigators from several departments at the university as well as from other institutions. This instrumentation will have a large impact on student learning, as it will be used to demonstrate magnetic phenomena at the K-12 level as well as being used by undergraduate through post-doctoral students for research projects.

9977522希尔主要研究仪器项目的资金将用于购买一个集成了10特斯拉分裂线圈超导磁体的微量热计系统。 需要分开的线圈配置，以获得相对于实验探头在不同方向上旋转的磁场。 一系列项目将从获得这一工具中受益匪浅。 这些项目将影响蒙大拿州立大学几个小组的研究工作，包括：i）非常规热力学研究准一维分子导体中的非费米液体导电态; ii）体量子霍尔系统的电子比热; iii）纳米尺度磁性团簇和分子中磁弛豫过程的热力学研究; iv）铁电和铁磁钙钛矿中的临界现象;以及v）孤立子对二维磁体中的磁比热的贡献。 所有感兴趣的材料都是高度各向异性的，因此，需要研究不同的磁场方向。 此外，该磁体还将与其他技术结合使用，这些技术的实验探针不能方便地在传统的轴向磁体内旋转，例如，电子顺磁共振，核磁共振，介电和微波电导率测量。主要研究仪器的资金正在用于获得仪器，这些仪器将用于研究各种表现出低维的材料。 该仪器将对大学的研究基础设施产生重大影响，因为它将影响来自大学几个部门以及其他机构的研究人员的研究项目。 该仪器将对学生的学习产生很大的影响，因为它将用于演示K-12水平的磁现象，以及由本科生通过博士后学生用于研究项目。