Electronic Order in Kagome Metals

Electronic Order in Kagome Metals was the 824th WE-Heraeus-Seminar, a highly interactive academic workshop organized by the Wilhelm und Else Heraeus Foundation.

Topic Kagome metals have emerged as a platform for correlated and topological physics in itinerant electron systems due to their high degree of orbital frustration. The Dirac cone and flat-band physics of toy models is modified in material realizations that give rise to strongly interacting ground states, such as charge order and superconductivity. Tied to the lattice, these systems promise to realize the long-sought dream of controlling intertwined electronic orders.

With a focus on the AV3Sb5 (A = K, Rb, Cs) class of materials, the workshop addressed mounting experimental evidence for a thus-far unexplained state that bears characteristics of a chiral state with delocalized orbital anti-ferromagnetism. The contradictory state of experimental evidence points to extreme sensitivity of this state to external perturbations.

Goal With this highly interactive workshop, the organizers aimed for a convergence of a minimal model for the interacting state in such Kagome metals, and to derive a roadmap addressing current open questions on microscopics, proposing complementary materials platforms and solidifying ideas towards interacting topological electronics.

Practical

• Dates: 8-12 December 2024
• Venue: PIERDREI Hotel HafenCity Hamburg, Germany
• Conference language: English
• The Wilhelm and Else Heraeus Foundation bears the cost of full-board accommodation for all participants.
• Scientific organizers: Prof. Dr. Philip Moll (Max Planck Institute for the Structure and Dynamics of Matter, Hamburg), Prof. Dr. Eun-Ah Kim (Cornell University, USA), Prof. Dr. Titus Neupert (University of Zurich, Switzerland).