The Physics of Unconventional Charge Order

Program Website

https://iasprogram.hkust.edu.hk/202701puco/

Overview

Unconventional charge order has emerged as a key research theme in condensed matter physics and material science. When complex lattice geometries meet electronic topologies, they frequently give rise to intertwined electronic phases—where charge order intimately competes or coexists with unconventional superconductivity and complex magnetism. This workshop highlights the diverse material platforms at the forefront of this field. We will explore the orbital frustration, flat-band physics, and interacting states of kagome metals, such as the AV₃Sb₅ and FeSn families, alongside the complex charge ordered states found in rare earth tritellurides, nickelates, and moiré materials. By bridging these distinct structural families, we seek to advance the knowledge of unconventional charge order and the mechanisms underlying these exotic ground states.

Designed as a highly interactive forum, this workshop aims to synthesize recent experimental breakthroughs with emerging theoretical frameworks. Our goal is to foster the convergence of minimal models capable of describing intertwined phases across diverse material systems. Together, participants will derive a comprehensive roadmap addressing current open questions regarding the microscopic mechanisms of unconventional charge order, emerging material platforms, and novel experimental methods for their study.

Organizing Committee

• Berthold JAECK, HKUST

• Shiming LEI, HKUST

• Junwei LIU, HKUST

• Jia-Xin YIN, Southern University of Science and Technology

Enquiries

For further enquiries, please contact the program secretariat at ias2027puco@ust.hk.