Equipment: MRI: Track #1 Acquisition of a Physical Property Measurement System for Interdisciplinary Research and Education on Next Generation Materials

设备： MRI：轨道

• 批准号: 2320728
• 负责人: Russell Hemley
• 金额: $ 64.8万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320728&HistoricalAwards=false
• 关键词: Equipment; MRI; Track; #1; Acquisition

The creation of next-generation materials is essential for a broad range of applications, as well as tests of fundamental physical and chemical theory. Complete characterization of the properties of these new materials is required in order to realize and deploy them in a variety of technologies. This project uses a Quantum Design Physical Property Measurement System (PPMS), a versatile and highly configurable instrument to measure electrical, magnetic, thermal transport, and thermodynamic properties of materials over a broad range of temperatures and pressures. As such, the instrument addresses an array of problems spanning the basic science, applied science, and engineering of new materials and devices. The instrument is advancing the fundamental physics, chemistry, and materials science of superconducting materials, quantum materials, thermoelectrics, energy storage materials, superhard materials, novel nanoscale materials, and semiconductor and superconductor-based electronic devices. The instrument is enabling research and student and postdoctoral training supported by numerous research grants of Senior Personnel at the University of Illinois Chicago (UIC) and of many collaborators at other institutions. The instrument is integrated into the student education and training activities of UIC, an urban minority-serving Research 1 institution near downtown Chicago, and is accessible to a large number of external collaborators both nationally and internationally.The instrument is enabling progress in the discovery, characterization, and synthesis of a variety of new materials over a broad range of pressures and temperatures. In particular, the system is advancing experimental studies of room-temperature superconductivity to megabar (100 GPa) pressures, including efforts to create such materials at or near ambient pressure; unconventional superconductors and topological materials such as Weyl semimetals; synthesis and characterization of complex oxide thin films; novel electronic and magnetic oxides, including studies of the effects of charge transfer, strain, and spin-state transitions on the properties of these oxides; the effects of embedded nanoparticles on thermal transport properties of oxide thermoelectrics; qubits based on two-dimensional materials such as novel lateral heterostructures or novel structures; layered two-dimensional heterostructures of transition metal dichalcogenides; wide band gap materials such as gallium nitride and diamond, and the discovery of next-generation functional superhard materials. Experimental work is guided in part by theorists who are actively involved in the planning of these efforts. The proposed system is cryogen-free, and the specific configuration includes four-probe direct current (DC) resistivity, alternating current (AC) electrical transport (resistivity, Hall effect), AC magnetic susceptibility, DC magnetization, and thermal transport (conductivity, Seebeck coefficient, thermoelectric figure of merit), and has special capabilities for measurements in extreme conditions. The system is integrated into the UIC Research Resources Center (RRC) and complements an array of other materials analysis capabilities available in the facility. The RRC is a centralized core facility that provides access to any internal and external (including industrial) users for an hourly fee. Such instrument access is managed via an online booking system and instrumentation access is available 24/7.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

下一代材料的创造对于广泛的应用以及基础物理和化学理论的测试至关重要。为了在各种技术中实现和部署这些新材料，需要对这些新材料的特性进行完整的表征。该项目使用量子设计物理特性测量系统（PPMS），这是一种多功能和高度可配置的仪器，可在广泛的温度和压力范围内测量材料的电，磁，热传输和热力学特性。因此，该仪器解决了一系列跨越基础科学，应用科学和新材料和设备工程的问题。该仪器正在推进超导材料，量子材料，热电，储能材料，超硬材料，新型纳米材料以及半导体和超导体电子器件的基础物理，化学和材料科学。该仪器是使研究和学生和博士后培训的高级人员在伊利诺伊大学芝加哥（UIC）和许多合作者在其他机构的许多研究赠款的支持。UIC是一家位于芝加哥市中心附近的城市少数民族服务研究机构，该仪器已被整合到UIC的学生教育和培训活动中，并可供国内和国际上大量外部合作者使用。该仪器有助于在广泛的压力和温度范围内发现、表征和合成各种新材料。特别是，该系统正在推进对兆巴（100 GPa）压力的室温超导性的实验研究，包括在环境压力或接近环境压力下创造这种材料的努力;非常规超导体和拓扑材料，如Weyl半金属;复合氧化物薄膜的合成和表征;新型电子和磁性氧化物，包括电荷转移、应变和自旋态转变对这些氧化物性质影响的研究;嵌入的纳米颗粒对氧化物热电体的热输运性质的影响;基于二维材料的量子比特，例如新型横向异质结构或新型结构;过渡金属二硫属化物的层状二维异质结构;氮化镓和金刚石等宽带隙材料，以及下一代功能性超硬材料的发现。实验工作部分是由积极参与这些努力的规划的理论家指导的。所提出的系统是无致冷剂的，并且具体配置包括四探针直流（DC）电阻率、交流（AC）电传输（电阻率、霍尔效应）、AC磁化率、DC磁化和热传输（电导率、塞贝克系数、热电优值），并且具有在极端条件下测量的特殊能力。该系统集成到UIC研究资源中心（RRC），并补充了该设施中可用的其他材料分析能力。RRC是一个集中的核心设施，为任何内部和外部（包括工业）用户提供访问，每小时收费。这种仪器访问通过在线预订系统进行管理，仪器访问全天候提供。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。