MRI: Acquisition of a Magnetic Property Measurements System

MRI：获取磁特性测量系统

• 批准号: 1828420
• 负责人: Kai Liu
• 金额: $ 36.66万
• 依托单位: Georgetown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-15 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828420&HistoricalAwards=false
• 关键词: MRI; Acquisition; Magnetic; Property; Measurements

This Major Research Instrumentation award will provide support for the acquisition of a state-of-the-art magnetometer that combines extreme sensitivity with multiple measurement modes. The instrument will meet a critical need for cutting-edge magnetic characterization, particularly for a wide variety of functional magnetic and superconducting nanostructures, on the Georgetown campus and in the greater District of Columbia area. The research projects that will be enabled by this instrument have potentially major technological impacts in low power nanoelectronics, quantum computation, magnetic recording, magnetic semiconductors, nanophotonics, catalysis and bioinorganic chemistry, magnetic resonance imaging, and hyperthermia therapeutics. The instrument will have a strong impact on broadening participation of underrepresented groups in STEM fields from a broad user base at Georgetown and nearby institutions. It will also be utilized to provide research experience for undergraduate students through several partner REU programs. This Major Research Instrumentation award support the acquisition of a Magnetic Property Measurement System (MPMS3), with unique technical features that are critical to support many current and future research efforts at Georgetown University. The extreme sensitivity, wide magnetic field range and temperature span, versatile operation modes, and cryogen-free capability are essential for studying a wide variety of technologically important magnetic and superconducting materials. The interdisciplinary research projects that will be enabled by this instrument include topological spin textures, chiral Majorana fermions, next generation heat-assisted magnetic recording media, single-molecule magnets, magnetic semiconductors, biomedical applications of magnetic nanoparticles, structure-property relationships in f-element materials, paramagnetic molecular complexes in catalysis and bioinorganic chemistry, and molecular spintronics based computational and memory devices. The instrument will be integrated with graduate and undergraduate curriculum to provide students with hands-on learning experiences, and promote teaching, learning and training.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.

这项重大研究仪器奖将为收购最先进的磁强计提供支持，该磁强计将极高的灵敏度与多种测量模式相结合。该仪器将满足尖端的磁特性的关键需求，特别是对各种功能的磁性和超导纳米结构，在乔治敦校园和更大的哥伦比亚特区地区。该仪器将支持的研究项目在低功率纳米电子学、量子计算、磁记录、磁性半导体、纳米光子学、催化和生物无机化学、磁共振成像和热疗疗法方面具有潜在的重大技术影响。该工具将对扩大代表性不足的群体在STEM领域的参与产生重大影响，这些群体来自乔治敦和附近机构的广泛用户群。它还将用于通过几个合作伙伴REU计划为本科生提供研究经验。 该主要研究仪器奖支持收购磁特性测量系统（MPMS 3），其独特的技术功能对于支持乔治敦大学当前和未来的许多研究工作至关重要。极高的灵敏度、宽磁场范围和温度跨度、多功能操作模式以及无制冷剂能力对于研究各种技术上重要的磁性和超导材料至关重要。该仪器将实现的跨学科研究项目包括拓扑自旋纹理，手性马约拉纳费米子，下一代热辅助磁记录介质，单分子磁体，磁性半导体，磁性纳米颗粒的生物医学应用，f-元素材料中的结构-性质关系，催化和生物无机化学中的顺磁性分子复合物，以及基于分子自旋电子学的计算和存储设备。该工具将与研究生和本科生课程相结合，为学生提供实践学习经验，并促进教学，学习和培训。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估。

项目成果

Electrically Enhanced Exchange Bias via Solid-State Magneto-ionics

• DOI: 10.1021/acsami.1c11126
• 发表时间: 2021-08-04
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: Murray, Peyton D.;Jensen, Christopher J.;Liu, Kai
• 通讯作者: Liu, Kai

Tuning the Properties of Zero-Field Room Temperature Ferromagnetic Skyrmions by Interlayer Exchange Coupling

• DOI: 10.1021/acs.nanolett.0c00137
• 发表时间: 2020-07-08
• 期刊: NANO LETTERS
• 影响因子: 10.8
• 作者: Lo Conte, Roberto;Nandy, Ashis K.;Wiesendanger, Roland
• 通讯作者: Wiesendanger, Roland

Two-way magnetic resonance tuning and enhanced subtraction imaging for non-invasive and quantitative biological imaging

• DOI: 10.1038/s41565-020-0678-5
• 发表时间: 2020-05-25
• 期刊: NATURE NANOTECHNOLOGY
• 影响因子: 38.3
• 作者: Wang, Zhongling;Xue, Xiangdong;Li, Yuanpei
• 通讯作者: Li, Yuanpei

Magnetic structure and internal field nuclear magnetic resonance of cobalt nanowires

• DOI: 10.1039/d1cp05164d
• 发表时间: 2022-04-29
• 期刊: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
• 影响因子: 3.3
• 作者: Scholzen, Pascal;Lang, Guillaume;de Lacaillerie, Jean-Baptiste D'espinose
• 通讯作者: de Lacaillerie, Jean-Baptiste D'espinose

Ion irradiation and implantation modifications of magneto-ionically induced exchange bias in Gd/NiCoO

Gd/NiCoO 中磁离子感应交换偏压的离子辐照和注入改性

• DOI: 10.1016/j.jmmm.2021.168479
• 发表时间: 2021
• 期刊: Journal of Magnetism and Magnetic Materials
• 影响因子: 2.7
• 作者: Jensen, Christopher J.;Quintana, Alberto;Sall, Mamour;Diez, Liza Herrera;Zhang, Junwei;Zhang, Xixiang;Ravelosona, Dafiné;Liu, Kai
• 通讯作者: Liu, Kai