The saddle point (Van Hove singularity) exhibits a divergent density of states in two-dimensional systems. leading to fascinating phenomena such as strong correlations and unconventional superconductivity. yet it is seldom observed in three-dimensional (3D) systems. In this work we find two types of 3D higher-order saddle points (HOSPs) in emerging 3D kagome metals YbCo_{6}Ge_{6} and ... https://vacuumdoctores.shop/product-category/food-division/