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Superconducting gap symmetry of Ba0.6K0.4Fe2As2 studied by angle-resolved photoemission spectroscopy
K. Nakayama, T. Sato, P. Richard +8
We have performed high-resolution angle-resolved photoemission spectroscopy on the optimally-doped BaKFeAs compound and determined the accurate momentum dep…
Observation of an Orbital Selective Electron-Mode Coupling in Fe-Based High- Superconductors
P. Richard, T. Sato, K. Nakayama +7
We have performed an angle-resolved photoemission spectroscopy study of the new superconductor BaKFeAs in the low energy range. We report the observation of…
Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
H. Ding, P. Richard, K. Nakayama +13
The recent discovery of superconductivity in iron-arsenic compounds below a transition temperature (Tc) as high as 55K ended the monopoly of copper oxides (cuprates) in the family…
Superconducting Gap and Pseudogap in Iron-Based Layered Superconductor La(OF)FeAs
T. Sato, S. Souma, K. Nakayama +6
We report high-resolution photoemission spectroscopy of newly-discovered iron-based layered superconductor La(OF)FeAs (Tc = 24 K). We found that the superconducti…
Protected nodes and the collapse of the Fermi arcs in high Tc cuprates
A. Kanigel, U. Chatterjee, M. Randeria +6
Angle resolved photoemission on underdoped Bi2Sr2CaCu2O8 reveals that the magnitude and d-wave anisotropy of the superconducting state energy gap are independent of temperature all…
Shadow bands in single-layered Bi_2Sr_2CuO_6 studied by angle-resolved photoemission spectroscopy
K. Nakayama, T. Sato, T. Dobashi +13
We have performed systematic angle-resolved photoemission spectroscopy (ARPES) on single-layered cuprate superconductor Bi2Sr2CuO6 to elucidate the origin of shadow band. We found…