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Evidence of topological insulator state in the semimetal LaBi
R. Lou, B. -B. Fu, Q. N. Xu +17
By employing angle-resolved photoemission spectroscopy combined with first-principles calculations, we performed a systematic investigation on the electronic structure of LaBi, whi…
ARPES observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMnAs and BaMnSb
W. -L. Zhang, P. Richard, A. van Roekeghem +14
We performed an angle-resolved photoemission spectroscopy study of BaMnAs and BaMnSb, which are isostructural to the parent compound BaFeAs of the 122 famil…
Superconductivity and electronic fluctuations in BaKFeAs studied by Raman scattering
S. -F. Wu, P. Richard, H. Ding +6
Using polarization-resolved electronic Raman scattering we study under-doped, optimally-doped and over-doped BaKFeAs samples in the normal and superconducting…
Orbital-differentiated coherence-incoherence crossover identified by photoemission spectroscopy in LiFeAs
H. Miao, Z. P. Yin, S. F. Wu +12
In the iron-based superconductors (FeSCs), orbital differentiation is an important phenomenon, whereby correlations stronger on the dxy orbital than on the dxz/yz orbital yield qua…
Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer
X. Shi, Z. -Q. Han, X. -L. Peng +8
The origin of enhanced superconductivity over 50 K in the recently discovered FeSe monolayer films grown on SrTiO (STO), as compared to 8 K in bulk FeSe, is intensely debated…
Disentangling the surface and bulk electronic structures of LaOFeAs
P. Zhang, J. Ma, T. Qian +7
We performed a comprehensive angle-resolved photoemission spectroscopy study of the electronic band structure of LaOFeAs single crystals. We found that samples cleaved at low tempe…