This mission of the MIEQM FWP is to understand phenomena when topological electronic bands on frustrated lattices are intertwined with magnetism. Exciting discoveries within the FWP inform new strategic goals to:
- Discover quantum phases and phenomena in geometrically-frustrated metals.
- Reveal signatures of band topology and geometry in flat-band magnets.
- Establish how rare-earth magnetism can be utilized to tune topological materials.
Our goals will be achieved by a collaborative team with experience in the synthesis and discovery of novel quantum materials; characterization of their magnetic, structural, and transport properties; and neutron scattering investigation of magnetic order and fluctuations, and their connection to topological bands through first-principles electronic-structure calculations. We define three integrated research thrusts that focus on specific objectives.
- Thrust 1 will focus discovering new kagome and pyrochlore metals and understanding how flat electronic bands control the development of itinerant magnetism.
- Thrust 2 is motivated to understand role of rare-earth magnetism in developing topological phases in kagome metals.
- Thrust 3 will investigate the perturbation of topological and correlated phases of matter with magnetic impurities.
Our proposed research aligns with the DOE-BES strategy in quantum materials by addressing challenges to understand fundamental issues of magnetism, including the development of itinerant magnetism, magnetic frustration, spontaneous chirality, and the role of defects. Success in achieving our goals will result in the discovery of new and tunable flat-band and topological magnets and provide a deep understanding of the interplay between magnetism and the electronic bands.
Project Members:
Principal Investigator: Robert McQueeney
Co-PIs: Liqin Ke, Aashish Sapkota, Tyler Slade, Ben Ueland, David Vaknin
Scientific Support Staff: Yongbin Lee, Devo Shlagel
Postdoc: Fei Li