CAREER: Design and synthesis of functional van der Waals magnets
职业:功能性范德华磁体的设计与合成
基本信息
- 批准号:2338229
- 负责人:
- 金额:$ 72.64万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2024
- 资助国家:美国
- 起止时间:2024-02-15 至 2029-01-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Non-technical abstract:Understanding and controlling the physical properties of materials is important for both scientific research and technological advancement. This project conducts a comprehensive experimental investigation to unveil the underlying magnetic energy scales that affect long-range magnetic ordering in van der Waals magnets. The successful acquisition of this information is pivotal to the fundamental understanding of magnetism in low-dimensional systems and broader progress in quantum materials. The novel materials design and synthesis part of this project aims to generate a large pool of newly available compounds that exhibit a wide range of magnetic properties. These new magnets further contribute to the emergent field of quantum magnetism, essential for realizing the quantum revolution in future technologies. The education plan integrates with this research project by broadening education in magnetism and condensed-matter experimental techniques at multiple levels to benefit graduate, undergraduate, and K-12 students. The education plan also promotes the values of diversity, equity, and inclusion in physics consistent with the University of Arizona’s institutional commitments and designation as a Hispanic-Serving Institution.Technical abstract:Magnetism offers a unique avenue for manipulating physical properties at the nanoscale. However, the development of low-dimensional magnetism faces significant constraints due to a limited understanding of magnetic properties and a lack of available layered magnetic materials. The goals of this project are to advance the understanding of low dimensional magnetic ordering through systematic thermodynamic characterization, and to synthesize new magnetic van der Waals (vdW) materials that will play a major role in future electronics. Experimental efforts focus on systematically characterizing the magnetic exchange interaction and magnetic anisotropy of bulk vdW magnets through low-temperature magnetization and heat capacity measurements. These experimental results are crucial for a quantitative understanding of the key factors that influence the magnetic properties of layered magnets in both bulk form and at the two-dimensional limit. The project team also aims to design and synthesize new functional vdW magnets that exhibit a controlled magnetic behavior and high magnetic ordering temperature by integrating chemistry and physics guiding principles. This project taps into underdeveloped areas that include rare earth magnetism and perovskite-type structures, which offer a wide tunability in both electronic and magnetic states. Results from exploratory synthesis experiments are made publicly available, contributing to a balanced training dataset for future machine learning developments aimed at accelerating new material discovery.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.
非技术摘要:了解和控制材料的物理性质对于科学研究和技术进步都很重要。该项目进行了全面的实验研究,以揭示潜在的磁能尺度,影响长程磁有序的货车德瓦耳斯磁铁。这些信息的成功获取对于低维系统中磁性的基本理解和量子材料的更广泛进展至关重要。该项目的新材料设计和合成部分旨在产生大量新可用的化合物,这些化合物具有广泛的磁性。这些新的磁体进一步促进了量子磁学的新兴领域,这对于实现未来技术的量子革命至关重要。该教育计划与该研究项目相结合,扩大多层次的磁性和凝聚态实验技术教育,使研究生、本科生和K-12学生受益。该教育计划还促进了多样性,公平和包容性的物理学价值观与亚利桑那大学的机构承诺和指定为西班牙裔服务机构相一致。技术摘要:磁性提供了一个独特的途径,在纳米尺度上操纵物理特性。然而,低维磁性的发展面临着重大的限制,由于有限的理解的磁性和缺乏可用的层状磁性材料。该项目的目标是通过系统的热力学表征来推进对低维磁有序的理解,并合成将在未来电子学中发挥重要作用的新的磁性货车德瓦尔斯(vdW)材料。实验工作的重点是系统地表征磁交换相互作用和磁各向异性的大块VDW磁体通过低温磁化和热容测量。这些实验结果是至关重要的定量理解的关键因素,影响层状磁体的磁性能在散装形式和在二维极限。该项目团队还旨在设计和合成新的功能vdW磁体,通过整合化学和物理指导原则,展现出受控的磁行为和高磁有序温度。该项目利用了包括稀土磁性和钙钛矿型结构在内的欠发达领域,这些领域在电子和磁性状态下都提供了广泛的可调性。探索性合成实验的结果公开,为未来机器学习的发展提供了一个平衡的训练数据集,旨在加速新材料的发现。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。
项目成果
期刊论文数量(0)
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会议论文数量(0)
专利数量(0)
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Tai Kong其他文献
Atomic structure of R-Cd (R=Gd, Dy and Tm) icosahedral quasicrystals
R-Cd(R=Gd、Dy 和 Tm)二十面体准晶的原子结构
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
Tsunetomo Yamada;Hiroyuki Takakura;Tai Kong;Paul Canfield;Alan I. Goldman;Guiliaume Beutier;Marc de Boissieu - 通讯作者:
Marc de Boissieu
Evolution of ferromagnetism and electrical resistivity in Sb-doped Crsub4/subPtGasub17/sub
锑掺杂的 Cr4PtGa17 中铁磁性和电阻率的演化
- DOI:
10.1016/j.jallcom.2024.177158 - 发表时间:
2025-01-05 - 期刊:
- 影响因子:6.300
- 作者:
Chaoguo Wang;Gina Angelo;Jeremy G. Philbrick;Tai Kong;Xin Gui - 通讯作者:
Xin Gui
Tai Kong的其他文献
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