Topological Tuning in Three-Dimensional Dirac Semimetals (Articolo in rivista)

Type
Label
  • Topological Tuning in Three-Dimensional Dirac Semimetals (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.113.256403 (literal)
Alternative label
  • Narayan, Awadhesh; Di Sante, Domenico; Picozzi, Silvia; Sanvito, Stefano (2014)
    Topological Tuning in Three-Dimensional Dirac Semimetals
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Narayan, Awadhesh; Di Sante, Domenico; Picozzi, Silvia; Sanvito, Stefano (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 113 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 25 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Trinity College Dublin; Trinity College Dublin; Consiglio Nazionale delle Ricerche (CNR); University of Aquila; Trinity College Dublin; Trinity College Dublin (literal)
Titolo
  • Topological Tuning in Three-Dimensional Dirac Semimetals (literal)
Abstract
  • We study with first-principles methods the interplay between bulk and surface Dirac fermions in three dimensional Dirac semimetals. By combining density functional theory with the coherent potential approximation, we reveal a topological phase transition in Na3Bi1-xSbx and Cd-3[As1-xPx](2) alloys, where the material goes from a Dirac semimetal to a trivial insulator upon changing Sb or P concentrations. Tuning the composition allows us to engineer the position of the bulk Dirac points in reciprocal space. Interestingly, the phase transition coincides with the reversal of the band ordering between the conduction and valence bands. (literal)
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