Twisted multilayer graphene exhibiting strong absorption bands induced by van Hove Singularities
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of Materials Science"
DOI: 10.1007/s12034-018-1648-5
Abstract: Twisted bilayer graphene exhibits several angle-dependent properties due to the emergence of the van Hove Singularities in its density of states. Among them, twist-angle-dependent optical absorption has gained a lot of attention due to its… read more here.
Keywords: absorption; van hove; graphene; hove singularities ... See more keywords
Effect of disorder on density of states and conductivity in higher-order Van Hove singularities in two-dimensional bands
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.075144
Abstract: We study systems with energy bands in two dimensions, hosting higher order Van Hove singularities (HOVHS) in the presence of disorder, using standard diagrammatic techniques for impurity averaging. In the clean limit, such singularities cause… read more here.
Keywords: order; higher order; van hove; order van ... See more keywords
Electronic phases in twisted bilayer graphene at magic angles as a result of Van Hove singularities and interactions
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.205151
Abstract: The discovery of different phases as a result of correlations, especially in low-dimensional materials, has been always an exciting and fundamental subject of research. Recent experiments on twisted bilayer graphene have revealed reentrant unconventional superconductivity… read more here.
Keywords: magic angles; bilayer graphene; van hove; hove singularities ... See more keywords
Tunable topological Dirac surface states and van Hove singularities in kagome metal GdV6Sn6
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.add2024
Abstract: Transition-metal-based kagome materials at van Hove filling are a rich frontier for the investigation of novel topological electronic states and correlated phenomena. To date, in the idealized two-dimensional kagome lattice, topologically Dirac surface states (TDSSs)… read more here.
Keywords: topology; dirac surface; surface; surface states ... See more keywords