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Influence of the surface symmetry breaking on the magnetism, collapsing and three dimensional dispersion of Co pnictides ACo2As2 (A=Ba, Sr, Ca)
Joseph Mansart, Patrick Le Fevre, Francois Bertran +3
We use angle-resolved photoemission to study the three dimensional (3D) electronic structure of Co pnictides ACo2As2 with A=Ba, Sr, Ca or a mixture of Sr and Ca. These compounds ar…
Orbital-dependent Fermi Surface shrinking as a fingerprint of nematicity in FeSe
Laura Fanfarillo, Joseph Mansart, Pierre Toulemonde +6
The large anisotropy in the electronic properties across a structural transition in several correlated systems has been identified as the key manifestation of electronic nematic or…
Surface Kondo Effect and Non-Trivial Metallic State of the Kondo Insulator YbB12
Kenta Hagiwara, Yoshiyuki Ohtsubo, Masaharu Matsunami +13
A synergistic effect between strong electron correlation and spin-orbit interaction (SOI) has been theoretically predicted to result in a new topological state of quantum matter on…
ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
Veronique Brouet, David LeBoeuf, Ping-Hui Lin +6
We study with ARPES the renormalization and quasiparticle lifetimes of the and / orbitals in two iron pnictides, LiFeAs and Ba(FeCo)A…
Hubbard band or oxygen vacancy states in the correlated electron metal SrVO?
S. Backes, T. C. Rödel, F. Fortuna +19
We study the effect of oxygen vacancies on the electronic structure of the model strongly correlated metal SrVO. By means of angle-resolved photoemission (ARPES) synchrotron ex…
Deviation from Fermi-liquid behavior in two-dimensional surface states of Au-induced nanowires on Ge(001) by correlation and localization
K. Yaji, R. Yukawa, S. Kim +7
The electronic states of Au-induced atomic nanowires on Ge(001) (Au/Ge(001) NWs) have been investigated by angle-resolved photoelectron spectroscopy with linearly polarized light.…