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7 papers · 2 filters
Structural phase transition induced by van Hove singularity in 5d transition metal compound IrTe2
T. Qian, H. Miao, Z. J. Wang +17
Comprehensive studies of the electronic states of Ir 5d and Te 5p have been performed to elucidate the origin of the structural phase transition in IrTe2 by combining angle-resolve…
Angle-resolved photoemission spectroscopy observation of anomalous electronic states in EuFeAsP
P. Richard, C. Capan, J. Ma +8
We used angle-resolved photoemission spectroscopy to investigate the electronic structure of EuFeAs, EuFeAsP and EuFeP. We observed doubled core…
Possible nodal superconducting gap emerging at the Lifshitz transition in heavily hole-doped Ba0.1K0.9Fe2As2
N. Xu, P. Richard, X. Shi +11
We performed a high energy resolution ARPES investigation of over-doped Ba0.1K0.9Fe2As2 with T_c= 9 K. The Fermi surface topology of this material is similar to that of KFe2As2 and…
Asymmetry of collective excitations in electron and hole doped cuprate superconductors
W. S. Lee, J. J. Lee, E. A. Nowadnick +10
High-temperature superconductivity (HTSC) mysteriously emerges upon doping holes or electrons into insulating copper oxides with antiferromagnetic (AFM) order. It has been thought…
Breakdown of singlets and triplets in Sr2RuO4 revealed by spin-resolved ARPES
C. N. Veenstra, Z. -H. Zhu, M. Raichle +10
Spin-orbit coupling has been conjectured to play a key role in the low-energy electronic structure of Sr2RuO4. Using circularly polarized light combined with spin- and angle-resolv…
Persistence of magnetic excitations in La2-xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
M. P. M. Dean, G. Dellea, R. S. Springell +11
One of the most intensely studied scenarios of high-temperature superconductivity (HTS) postulates pairing by exchange of magnetic excitations [1]. Indeed, such excitations have be…