MRI-RUI: Acquisition of a SQUID Magnetometer for Materials Science Research and Education

MRI-RUI：购买用于材料科学研究和教育的 SQUID 磁力计

• 批准号: 0723105
• 负责人: Kartik Ghosh
• 金额: $ 35.33万
• 依托单位: Missouri State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0723105&HistoricalAwards=false
• 关键词: MRI; RUI; Acquisition; SQUID; Magnetometer

Technical: For the past many years, research laboratories across the world have been routinely using Superconducting Quantum Interference Device (SQUID) magnetometers for measuring magnetic flux densities as small as 10-15 Tesla. With an array of research programs in electronic and magnetic materials, absence of a magnetometer believed to be so crucial for materials research has severely impacted researchers at Missouri State University in completing the basic fundamental aspects of their research. Acquisition of a state-of-the-art SQUID magnetometer will tremendously enhance capabilities and add a new dimension to materials science at Missouri State. The faculty members will use this instrument to study AC/DC magnetization, magnetoresistance, and Hall effect for the following projects: (1) Ferromagnetism in oxide-based dilute magnetic semiconductors; (2) Polarization-doped dilute magnetic heterostructures; (3) Magnetic exchange coupling induced at the interface of core-shell nanocomposites; (4) Magnetic and transport properties of conducting polymers; (5) Investigation of spin-crossover phenomenon in highly-colored anionic tris[Fe(II) cyanoximates]; and (6) Investigation of gadolinium and lutetium(III) porphyrin-doped polymeric films. The new SQUID facility will significantly elevate the quality of existing programs in spintronics, magnetochemistry, and novel magnetic nanocomposites. The undergraduate and graduate students who will use the SQUID magnetometer and acquire training and skills through research projects will be more suitable for employment in high-tech industries and research laboratories. A few selective courses will be modified to introduce SQUID magnetometry including at least one hands-on laboratory project. The SQUID magnetometer will complement the existing facilities available for Materials Science research and will be available for faculty and students in the disciplines of physics, chemistry, biology, biomedical sciences, and geology at Missouri State University. Non-Technical: For the past many years, research laboratories across the world have been routinely using Superconducting Quantum Interference Device (SQUID) magnetometers for measuring magnetic fields, which are a trillion times smaller than a refrigerator magnet. With an array of research programs in electronic and magnetic materials, absence of a magnetometer believed to be so crucial for materials research has severely impacted researchers at Missouri State University in completing the basic fundamental aspects of their research. Acquisition of a state-of-the-art SQUID magnetometer will tremendously enhance capabilities and add a new dimension to materials science at Missouri State. This state-of-the-art facility will provide new exciting research opportunities on diverse materials: (1) Some metal oxides and nitrides which could be used for non-erasable memory applications; (2) Tiny magnetic particles embedded in a non-magnetic material for applications in biological separation and targeted drug/gene delivery; (3) Plastics which conduct electricity and have applications as display units, solar batteries, etc; (4) Molecules with embedded magnetic atoms as chemical and biological sensors; and (5) Plastics doped with magnetic molecules for food and clinical fields. The new SQUID facility will significantly elevate the existing programs in nanoscience, nanotechnology, electronics, novel magnetic materials, and chemical and biological sensors. The undergraduate and graduate students who will use the SQUID magnetometer and acquire training and skills through research projects will be more suitable for employment in high-tech industries and research laboratories. A few selective courses will be modified to introduce SQUID magnetometry including at least one hands-on laboratory project. The SQUID magnetometer will complement the existing facilities available for Materials Science research and will be available for faculty and students in the disciplines of physics, chemistry, biology, biomedical sciences, and geology at Missouri State University.

技术支持：在过去的许多年里，世界各地的研究实验室一直在常规使用超导量子干涉器件（SQUID）磁强计来测量小至10-15特斯拉的磁通量密度。随着一系列的研究计划，在电子和磁性材料，缺乏一个磁力计被认为是如此重要的材料研究已经严重影响了研究人员在密苏里州州立大学在完成他们的研究的基本方面。获得最先进的SQUID磁强计将大大提高能力，并增加了一个新的层面，材料科学在密苏里州。教师们将使用这台仪器来研究以下项目的AC/DC磁化、磁阻和霍尔效应：（1）氧化物基稀磁半导体的铁磁性;（2）极化掺杂稀磁异质结构;（3）核-壳纳米复合材料界面处诱导的磁交换耦合;（4）导电聚合物的磁性和输运性质;（5）磁性材料的磁性和输运性质。（5）在高颜色的阴离子三[Fe（II）氰肟酸盐]中的自旋交叉现象的研究;和（6）钆和镥（III）卟啉掺杂的聚合物膜的研究。新的SQUID设施将显著提高自旋电子学、磁化学和新型磁性纳米复合材料方面现有项目的质量。将使用SQUID磁强计并通过研究项目获得培训和技能的本科生和研究生将更适合在高科技行业和研究实验室就业。一些选修课程将被修改，以介绍SQUID磁强计，包括至少一个动手实验室项目。SQUID磁强计将补充现有的材料科学研究设施，并将提供给教师和学生在物理，化学，生物学，生物医学科学和地质学科在密苏里州州立大学。非技术：在过去的许多年里，世界各地的研究实验室一直在常规使用超导量子干涉器件（SQUID）磁力计来测量磁场，这些磁场比冰箱磁铁小一万亿倍。随着一系列的研究计划，在电子和磁性材料，缺乏一个磁力计被认为是如此重要的材料研究已经严重影响了研究人员在密苏里州州立大学在完成他们的研究的基本方面。购买最先进的SQUID磁力计将极大地增强能力，并为密苏里州的材料科学增添新的维度。这个先进的设施将为不同材料提供令人兴奋的新研究机会：（1）一些可用于不可擦除存储器的金属氧化物和氮化物;（2）嵌入非磁性材料中的微小磁性颗粒，用于生物分离和靶向药物/基因输送;（3）导电塑料，可用作显示器、太阳能电池等;（4）嵌入磁性原子的分子，作为化学和生物传感器;（5）掺杂磁性分子的塑料，用于食品和临床领域。新的SQUID设施将大大提升现有的纳米科学，纳米技术，电子学，新型磁性材料以及化学和生物传感器项目。将使用SQUID磁强计并通过研究项目获得培训和技能的本科生和研究生将更适合在高科技行业和研究实验室就业。一些选修课程将被修改，以介绍SQUID磁强计，包括至少一个动手实验室项目。SQUID磁强计将补充现有的材料科学研究设施，并将提供给教师和学生在物理，化学，生物学，生物医学科学和地质学科在密苏里州州立大学。