Condensed Matter Physics in the Alps: Geometric Frustration, Topology, Flat Bands, and Correlation in Kagome and Van der Waals Systems

Session

Monday Morning Session II, Chair C. Broholm

5 Jan 2026, 10:30

Saas Fee

39. Magnetism on the Shastry-Sutherland lattice

Frédéric Mila (Ecole Polytechnique Fédérale de Lausanne)

05/01/2026, 10:30

Theory

Invited talk (by invitation only)

The Shastry-Sutherland lattice, also known as the orthogonal dimer lattice, is a paradigmatic geometry of frustrated magnetism both for classical and quantum spins. In this talk, I will report on extensive tensor network simulations of that model that have allowed us to understand the remarkably rich phase diagram of the spin-1/2 Shastry-Sutherland SrCu2(BO3)2 under pressure and magnetic...

27. Dirac-like spinons and emergent symmetry in s=1/2 kagome antiferromagnets

Kwang-Yong Choi (Sungkyunkwan Unversity)

05/01/2026, 11:05

Kagome experimental

Invited talk (by invitation only)

Kagome antiferromagnets have garnered significant attention in condensed matter physics owing to their potential to host a diverse range of quantum spin liquids (QSLs) and fractional magnetization plateaus. In particular, the S=1/2 kagome antiferromagnet has been regarded as a holy grail for realizing QSLs, with candidates ranging from gapped Z2 to U(1) Dirac QSLs. Theoretical studies further...