Ordered States in Quantum Matter

Ordered states in quantum materials refer to the highly organized arrangements of lattice, spin, and charge that give rise to unique and often exotic physical properties. Examples of these ordered states include superconductivity, magnetism, charge density waves, and topological phases. Direct observation of these ordered states and understanding their interactions are crucial for unravelling the unique properties of quantum materials. Multimodal TEM offers unparalleled advantages in imaging these ordered states at the atomic level in unprecedented detail, especially under the working conditions of quantum materials. Of particular interest are TEM studies at cryogenic temperatures, where many of these unique properties emerge and stabilise. Enabled by cryo-TEM and related method developments, our research is delving into the intricate structural, electronic and vibrational states of quantum materials at the atomic scale, deepening the knowledge of quantum states.

 

Selected Publications

1. D. Li, H. Wang, K. Li, B. Zhu, K. Jiang, D. Backes, L. I. Veiga, J. Shi, P. Roy, A. Chen, Q. Jia, T. Lee, S. S. Dhesi, D. O. Scanlon, J. L. MacManus-Driscoll, P. A. van Aken, K. H. L. Zhang, and W. Li. Observation and Origin of Emergent and Robust Ferromagnetic-Insulating State in Epitaxial Strained LaCoO3 Films. Nat. Commun. 2023, 14, 3638. (https://ent.org/10.1038/s41467-023-39369-6)