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

Session

Thursday Coffee Break & Poster

8 Jan 2026, 09:45

Saas Fee

33. Angle-dependent magnetoresistance revealing a structural transition in Mn3Ga thin films

Zhen Tao (PSI - Paul Scherrer Institut)

08/01/2026, 09:45

Kagome experimental

Poster

As a kagome Weyl semimetal with a high Néel temperature, Mn3Ga has attracted interest due to its large anomalous Hall and topological transport properties. We performed angle-dependent magnetoresistance measurements on the Mn3Ga thin films and observed a distinct anomaly in the temperature evolution and angular dependence of the resistivity. The change in the angular profile indicates a...

61. Sub-50mK adiabatic demagnetization refrigeration with frustrated Yb-oxide magnets in the PPMS

Philipp Gegenwart (University of Augsburg)

08/01/2026, 09:45

Kagome experimental

Poster

Accessing milli-Kelvin temperatures is a prerequisite for quantum-matter research and applications in quantum technologies. Adiabatic demagnetization refrigeration (ADR) is a simple and sustainable alternative to 3He/4He dilution refrigeration. Geometrically frustrated triangular and kagome rare earth oxides feature important advantages compared to the traditionally utilized hydrated...

64. Unraveling Intertwined Orders in the Strongly Correlated Kagome Metal CsCr3Sb5

Luyi Yang (Tsinghua University)

08/01/2026, 09:45

Kagome experimental

Poster

While correlated phenomena of flat bands have been extensively studied in twisted systems, the ordered states that emerge from interactions in the intrinsic flat bands of kagome lattice materials remain largely unexplored. The newly discovered kagome metal CsCr3Sb5 offers a unique and rich platform for this research, as its multi-orbital flat bands at the Fermi surface result in a complex...