%0 Journal Article
%A Sheverdyaeva, P. M.
%A Offi, F.
%A Gardonio, S.
%A Novinec, L.
%A Trioni, M. I.
%A Ceresoli, D.
%A Iacobucci, S.
%A Ruocco, A.
%A Stefani, G.
%A Petaccia, L.
%A Gorovikov, S.
%A Cappelluti, E.
%A Moras, P.
%A Bihlmayer, G.
%A Blügel, S.
%A Carbone, C.
%T Topological properties and self-energy effects in elemental Yb
%J Physical review / B
%V 104
%N 19
%@ 1098-0121
%C Woodbury, NY
%I Inst.
%M FZJ-2021-04379
%P 195138
%D 2021
%X Recent theoretical calculations predict the presence of Dirac nodal lines with π Berry phase and related topological surface states in elemental alkaline-earth metals. Here we provide experimental and theoretical evidence for the existence of similar nodal lines also in hexagonal close-packed Yb, an element of the lanthanide series, in the limit of zero spin-orbit coupling. These topological properties emerge after taking into account self-energy corrections, which permit one to correctly describe the experimental low-energy electronic structure of Yb. By angle-resolved photoemission spectroscopy we demonstrate the occurrence of topological surface states in Yb which are robust in the presence of the large spin-orbit coupling.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000744272400006
%R 10.1103/PhysRevB.104.195138
%U https://juser.fz-juelich.de/record/902580