LEAPS-MPS: Design and discovery of new magnetic Weyl semimetals

LEAPS-MPS：新型磁性外尔半金属的设计和发现

• 批准号: 2316869
• 负责人: Halyna Hodovanets
• 金额: $ 24.91万
• 依托单位: Missouri University of Science and Technology
• 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: 2023-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2316869&HistoricalAwards=false
• 关键词: LEAPS; MPS; Design; discovery; new

Non-technical abstract:Technological progress in electronics depend on the discovery and development of novel quantum materials. Recently discovered Weyl semimetals are a promising new class of materials with potentially wide-ranging technological applications. However, many of the currently known Weyl semimetals require the application of an external magnetic field or pressure to reveal their novel behavior, which is a drawback in applications where none can be applied. In that respect, new intrinsically magnetic Weyl semimetals are desirable, but only a few such materials are known. This project aims to explore and characterize a new family of proposed magnetic Weyl semimetals through single crystal growth and magneto-electrical transport measurements. It will unlock the key ingredients necessary for discovery and design of new magnetic Weyl semimetals. The project includes a comprehensive outreach strategy and provides important training in material synthesis and characterization for high-school, undergraduate, and graduate students.Technical Abstract: Magnetic Weyl semimetals, characterized by broken spatial inversion and time-reversal symmetries whose quasiparticle excitations are Weyl fermions, have recently attracted much attention because they show a variety of new topological states that are promising for diverse technological applications, including quantum bits. Despite significant theoretical and experimental work, only a few such materials are known. The objective of this project is to discover and design such materials through the investigation of families of magnetic strongly correlated intermetallic compounds via single crystal growth and measurement of magnetotransport properties (i.e., the Hall effect). Together with theoretical calculations and angle-resolved photo-emission spectroscopy (ARPES) measurements, this project will provide deeper insight into how Weyl fermions manifest in condensed matter systems, broaden the current research field by discovering many new magnetic Weyl semimetal families, and study the interplay between Weyl fermions, electron-electron correlations and quantum criticality.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：电子技术的技术进步取决于新型量子材料的发现和开发。最近发现的Weyl半法是具有潜在广泛技术应用的新型材料。但是，许多当前已知的Weyl半法需要应用外部磁场或压力来揭示其新型行为，这在无法应用的应用中是一个缺点。在这方面，需要新的固有磁性韦伊尔半法，但只有少数此类材料已知。该项目旨在通过单晶生长和磁性电磁运输测量值来探索和表征一个新的拟议磁性Weyl半学家族。它将解锁发现和设计新的磁性Weyl半法的所需的关键成分。该项目包括一项全面的宣传策略，并提供了高中，学科和研究生的材料合成和表征的重要培训。技术摘要：磁性魏尔半学的特征，以空间倒置破裂和时间不变的对称性为特征位。尽管理论上和实验性工作很大，但只有少数此类材料已知。该项目的目的是通过调查通过单晶生长和磁转运特性的测量（即HALL效应）来研究和设计这些材料。与理论计算和角度分辨的光发射光谱（ARPES）测量一起，该项目将更深入地了解韦伊尔·费米（Weyl Fermions）如何在凝聚的物质系统中表现出来，通过发现许多新的磁性韦基半含量族群来扩大当前的研究领域，并研究许多新的磁性范围，并研究weyl-fermions state pressron and prestron and prestron and prestry and prestry of tore nofers and prestry and predistry of tore nofe and prestry of tore the seprient and prectory。认为值得通过基金会的智力优点和更广泛影响的评论标准来评估值得支持。