2 papers
cond-mat.str-el2024
Strange metal at the Lifshitz transition
Yi-Hui Xing, Wu-Ming Liu, Xiao-Tian Zhang
Strange metal behavior is widely observed in cuprates, ruthenates, and twisted bilayer graphene. We study quantum critical transport at a two-dimensional Lifshitz transition, where…
cond-mat.str-el2024
Non-Fermi-Liquid/Marginal-Fermi-Liquid Signatures Induced by Van Hove Singularity
Yi-Hui Xing, Wu-Ming Liu
We theoretically study the two-dimensional metal that is coupled to critical magnons and features van Hove singularities on the Fermi surface. When there is only translationally in…