2 papers
cond-mat.mes-hall2024
Higher-Order Van Hove Singularities in Kagome Topological Bands
Edrick Wang, Lakshmi Pullasseri, Luiz H. Santos
Motivated by the growing interest in band structures featuring higher-order Van Hove singularities (HOVHS), we investigate a spinless fermion kagome system characterized by nearest…
cond-mat.mes-hall2024
Chern Bands with Higher-Order Van Hove Singularities on Topological Moiré Surface States
Lakshmi Pullasseri, Luiz H. Santos
In two-dimensional electronic lattices, changes in the topology of the Fermi surface (Lifshitz transitions) lead to Van Hove singularities characterized by a divergence in the elec…