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

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地使用超导量子干涉装置（SQUID）磁力计来测量小到10-15特斯拉的磁通密度。在电子和磁性材料的一系列研究项目中，缺少被认为对材料研究至关重要的磁力计严重影响了密苏里州立大学的研究人员完成他们研究的基本方面。获得最先进的SQUID磁力计将极大地提高能力，并为密苏里州立大学的材料科学增加一个新的维度。该仪器将用于研究交流/直流磁化、磁阻和霍尔效应，研究项目包括：(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诱导的磁交换耦合；(4)导电聚合物的磁性和输运性；(5)高着色阴离子三[Fe(II) cyanoximates]中自旋交叉现象的研究；(6)钆和镥卟啉掺杂聚合物薄膜的研究。新的SQUID设备将显著提高自旋电子学、磁化学和新型磁性纳米复合材料现有项目的质量。使用SQUID磁力计并通过研究项目获得训练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为介绍SQUID磁强计，包括至少一个动手实验项目。SQUID磁力计将补充现有的材料科学研究设施，并将提供给密苏里州立大学物理、化学、生物学、生物医学科学和地质学学科的教师和学生。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地使用超导量子干涉装置（SQUID）磁力计来测量磁场，它比冰箱磁铁小一万亿倍。在电子和磁性材料的一系列研究项目中，缺少被认为对材料研究至关重要的磁力计严重影响了密苏里州立大学的研究人员完成他们研究的基本方面。获得最先进的SQUID磁力计将极大地提高能力，并为密苏里州立大学的材料科学增加一个新的维度。这个最先进的设施将为不同材料提供新的令人兴奋的研究机会：(1)一些金属氧化物和氮化物可用于不可擦除存储器的应用；(2)嵌入在非磁性材料中的微小磁性颗粒，用于生物分离和靶向药物/基因传递；（三）导电塑料，应用于显示器、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)食品和临床用掺杂磁性分子的塑料。新的SQUID设施将显著提升纳米科学、纳米技术、电子、新型磁性材料以及化学和生物传感器的现有项目。使用SQUID磁力计并通过研究项目获得训练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为介绍SQUID磁强计，包括至少一个动手实验项目。SQUID磁力计将补充现有的材料科学研究设施，并将提供给密苏里州立大学物理、化学、生物学、生物医学科学和地质学学科的教师和学生。

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.