Time-reversal symmetry breaking in charge density wave of CsV${}_3$Sb${}_5$ detected by polar Kerr effect

Yajian Hu, Soichiro Yamane, Giordano Mattoni +10

The Kagome lattice exhibits rich quantum phenomena owing to its unique geometric properties. Appealing realizations are the Kagome metals AV${}_3$Sb${}_5$ (A = K, Rb, Cs), where unconv…