Interacting invariants for Floquet phases of fermions in two dimensions
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.085115
Abstract: We construct a many-body quantized invariant that sharply distinguishes among two dimensional non-equilibrium driven phases of interacting fermions. This is an interacting generalization of a band-structure Floquet quasi-energy winding number, and describes chiral pumping of… read more here.
Keywords: floquet phases; invariants floquet; two dimensions; phases fermions ... See more keywords
Ferromagnetic Weyl Fermions in Two-Dimensional Layered Electride Gd_{2}C.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.187203
Abstract: Recently, two-dimensional layered electrides have emerged as a new class of materials which possess anionic electrons in the interstitial spaces between cationic layers. Here, based on first-principles calculations, we discover a time-reversal-symmetry-breaking Weyl semimetal phase… read more here.
Keywords: dimensional layered; weyl fermions; ferromagnetic weyl; fermions two ... See more keywords