Who
Weiwei Xie (Michigan State University)
Abstract
The design and discovery of novel materials exhibiting exotic quantum phenomena are expected to play a pivotal role in advancing next-generation technologies. In this talk, I will present an overview of the research progress made by our group over the past three years, for example, the identification of new quantum magnetic materials under both ambient and high- pressure conditions. Another key aspect of our work involves applying chemical bonding theory to predict metastable high-pressure phases in magnetic semiconducting materials. These predictions have been experimentally validated, providing insight into the underlying physics of these complex systems. Additionally, the development of permanent ferromagnetic materials with extremely large magnetic anisotropy is crucial for future technological applications, such as energy-efficient motors and data storage. Leveraging crystal symmetry principles and structure–property relationships, we have successfully designed new ferromagnetic compounds exhibiting magnetic anisotropy surpassing that of SmCo 5 . I will discuss our approach to designing these materials from both experimental and theoretical perspectives, including the integration of machine learning techniques to accelerate discovery.
Relevant papers:
1. Xu, M., Gonzalez Jimenez, J.L., Jose, G.C., Boonkird, A., Xing, C., Harrod, C., Li, X., Zhou, H.D., Ke, X., Bi, W., Li, M., Xie, W.* 2025. Spin–Flop and Metamagnetic Transition in Monoclinic Eu 4 Bi 6 Se 13 . Chemistry of Materials, 2025, 37(5), 1935-1941.
2. Xu, M., Jose, G.C., Cheng, M., Peng, C., Gonzalez Jimenez, J.L., Bi, W., Li, M., Xie, W.* Continuous Evolution of Eu 2+ /Eu 3+ Mixed Valency Driven by Pressure and Temperature. The Journal of Physical Chemistry A, 2025, 129(9), 2371-2377.
3. Xu, M., Lee, Y., Ke, X., Kang, M.C., Boswell, M., Bud’ko, S.L., Zhou, L., Ke, L., Li, M.,
Canfield, P.C., Xie, W.* Giant uniaxial magnetocrystalline anisotropy in SmCrGe 3 . Journal of the American Chemical Society, 2024, 146(44), 30294-30302.
4. Xie, W.* The search for superconductivity just got wider. Nature, 2024, 509-510.
5. Dissanayaka Mudiyanselage, R.S., Wang, H., Vilella, O., Mourigal, M., Kotliar, G., Xie, W.* LiYbSe 2 : Frustrated magnetism in the pyrochlore lattice. Journal of the American Chemical Society, 2022, 144(27), 11933-11937.
Relevant papers:
1. Xu, M., Gonzalez Jimenez, J.L., Jose, G.C., Boonkird, A., Xing, C., Harrod, C., Li, X., Zhou, H.D., Ke, X., Bi, W., Li, M., Xie, W.* 2025. Spin–Flop and Metamagnetic Transition in Monoclinic Eu 4 Bi 6 Se 13 . Chemistry of Materials, 2025, 37(5), 1935-1941.
2. Xu, M., Jose, G.C., Cheng, M., Peng, C., Gonzalez Jimenez, J.L., Bi, W., Li, M., Xie, W.* Continuous Evolution of Eu 2+ /Eu 3+ Mixed Valency Driven by Pressure and Temperature. The Journal of Physical Chemistry A, 2025, 129(9), 2371-2377.
3. Xu, M., Lee, Y., Ke, X., Kang, M.C., Boswell, M., Bud’ko, S.L., Zhou, L., Ke, L., Li, M.,
Canfield, P.C., Xie, W.* Giant uniaxial magnetocrystalline anisotropy in SmCrGe 3 . Journal of the American Chemical Society, 2024, 146(44), 30294-30302.
4. Xie, W.* The search for superconductivity just got wider. Nature, 2024, 509-510.
5. Dissanayaka Mudiyanselage, R.S., Wang, H., Vilella, O., Mourigal, M., Kotliar, G., Xie, W.* LiYbSe 2 : Frustrated magnetism in the pyrochlore lattice. Journal of the American Chemical Society, 2022, 144(27), 11933-11937.