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Spectral properties of transition metal pnictides and chalcogenides: angle-resolved photoemission spectroscopy and dynamical mean field theory
Ambroise van Roekeghem, Pierre Richard, Hong Ding +1
Electronic Coulomb correlations lead to characteristic signatures in the spectroscopy of transition metal pnictides and chalcogenides: quasi-particle renormalizations, lifetime eff…
Observation of high-Tc superconductivity in rectangular FeSe/STO(110) monolayer
P. Zhang, X. -L. Peng, T. Qian +12
It is well known that superconductivity in Fe-based materials is favoured under tetragonal symmetry, whereas competing orders such as spin-density-wave (SDW) and nematic orders eme…
Observation of Fermi arc spin texture in TaAs
B. Q. Lv, S. Muff, T. Qian +15
We have investigated the spin texture of surface Fermi arcs in the recently discovered Weyl semimetal TaAs using spin- and angle-resolved photoemission spectroscopy. The experiment…
Interatomic Coulomb interaction and electron nematic bond order in FeSe
Kun Jiang, Jiangping Hu, Hong Ding +1
Despite having the simplest atomic structure, bulk FeSe has an observed electronic structure with the largest deviation from the band theory predictions among all Fe-based supercon…
Observation of Weyl nodes and Fermi arcs in TaP
N. Xu, H. M. Weng, B. Q. Lv +18
A Weyl semimetal possesses spin-polarized band-crossings, called Weyl nodes, connected by topological surface arcs. The low-energy excitations near the crossing points behave the s…
Topological nature of FeSeTe superconductor
Zhijun Wang, P. Zhang, Gang Xu +10
We demonstrate, using first-principles calculations, that the electronic structure of FeSeTe (=0.5) is topologically non-trivial, characterized by an odd $\mathbb…