Probing Electronic Instabilities and Magnetic Correlations in Kagome Metals using Advanced Magnetic Resonance Techniques
Xiaoling Wang1, Associate Professor
Brenden R. Ortiz2
1: California State University, East Bay, Hayward, CA 94542
2: Oak Ridge National Laboratory, Oak Ridge, TN 37830
Kagome metals have emerged as a fascinating platform for studying complex quantum behaviors. These materials, characterized by a lattice of corner-sharing triangles, exhibit unique electronic properties that can lead to phenomena such as charge density waves, superconductivity, and exotic magnetic orders. Recent discoveries have revealed a rich landscape of behaviors, prompting further investigation into their fundamental properties and potential applications. This research project will elucidate key questions about electronic instabilities and magnetic correlations in kagome metals. The collaboration between California State University, East Bay—a non-R1 minority-serving institution—and Oak Ridge National Laboratory exemplifies the Funding for Accelerated, Inclusive Research (FAIR) program’s mission to build research capacity at institutions historically underrepresented in the DOE Office of Science portfolio. The project focuses on three primary objectives using advanced magnetic resonance techniques. First, it will explore the mechanisms behind charge density wave formation, investigating the collective electronic states that emerge from the interplay between the crystal lattice and electron-electron interactions. Second, the research will study how physical strain affects the electronic properties of these systems. Third, the team will examine the magnetic properties of rare-earth-based kagome metals, using chemistry to control the emergence of various magnetic structures. By leveraging nuclear magnetic resonance and electron magnetic resonance, this work generates crucial insight into the electronic and magnetic properties of complex quantum materials, fundamentally improving our understanding of quantum phenomena in strongly correlated electron systems. This knowledge naturally extends towards the development of key quantum technologies, such as more efficient electronic devices, quantum sensors, and quantum computers. Simultaneously, this FAIR project enhances the research infrastructure and expertise at California State University, East Bay, fostering a mutually beneficial relationship with the DOE complex, and Oak Ridge National Laboratory in particular. The collaboration provides unique opportunities for talented students from underrepresented groups to engage in cutting-edge materials research. By involving these students in advanced techniques and analysis, this project will cultivate the next generation of scientists, equipping them with the tools to tackle complex problems in materials science and engineering.
This research was selected for funding by the Office of Basic Energy Sciences
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