A possible candidate for triply degenerate point fermions in trigonal layered PtBi2
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-05730-3
Abstract: Triply degenerate point (TP) fermions in tungsten–carbide-type materials (e.g., MoP), which represent new topological states of quantum matter, have generated immense interest recently. However, the TPs in these materials are found to be far below… read more here.
Keywords: trigonal layered; layered ptbi2; triply degenerate; degenerate point ... See more keywords
Quasi-triply-degenerate states and zero refractive index in two-dimensional all-dielectric photonic crystals.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.383589
Abstract: We introduce the concept of a quasi-triply-degenerate state (QTDS) and demonstrate its relation to an effective zero refractive index (ZRI) in a two-dimensional (2D) square lattice photonic crystal (PC) of all dielectric pillars. A QTDS… read more here.
Keywords: quasi triply; triply degenerate; zero refractive; two dimensional ... See more keywords
Asymmetry spin-polarization Fermi arc and topological chiral beam splitter with the triply degenerate point in metamaterial.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.482614
Abstract: Dirac points (DPs) and Weyl points (WPs) have received much attention in photonic crystals (PhCs) and three-dimensional (3D) metamaterials research due to the robust surface states and Fermi arcs. In this work, two pairs of… read more here.
Keywords: beam splitter; chiral beam; triply degenerate; spin polarization ... See more keywords