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Symmetry and disorder of the vitreous vortex lattice in an overdoped BaFe_{2-x}Co_xAs_2 superconductor: Indication for strong single-vortex pinning
D. S. Inosov, T. Shapoval, V. Neu +14
The disordered flux line lattice in single crystals of the slightly overdoped aFe_{2-x}Co_xAs_2 (x = 0.19, Tc = 23 K) superconductor is studied by magnetization measurements, small…
Normal-State Spin Dynamics and Temperature-Dependent Spin Resonance Energy in an Optimally Doped Iron Arsenide Superconductor
D. S. Inosov, J. T. Park, P. Bourges +8
The proximity of superconductivity and antiferromagnetism in the phase diagram of iron arsenides, the apparently weak electron-phonon coupling and the "resonance peak" in the super…
Electronic structure of Pr_{2-x}Ce_xCuO_4 studied via ARPES and LDA+DMFT+Σ_k
I. A. Nekrasov, N. S. Pavlov, E. Z. Kuchinskii +10
The electron-doped Pr(2-x)Ce(x)CuO(4) (PCCO) compound in the pseudogap regime (x~0.15) was investigated using angle-resolved photoemission spectroscopy (ARPES) and the generalized…
Fermi surface of Ba{1-x}KxFe2As2 as probed by angle-resolved photoemission
V. B. Zabolotnyy, D. V. Evtushinsky, A. A. Kordyuk +10
Here we apply high resolution angle-resolved photoemission spectroscopy (ARPES) using a wide excitation energy range to probe the electronic structure and the Fermi surface topolog…
Two energy gaps and Fermi surface 'arcs' in NbSe2
S. V. Borisenko, A. A. Kordyuk, V. B. Zabolotnyy +9
Using angle-resolved photoemission spectroscopy (ARPES), we report on the direct observation of the energy gap in 2H-NbSe2 caused by the charge-density waves (CDW). The gap opens i…
Suppression of the structural phase transition and lattice softening in slightly underdoped Ba(1-x)K(x)Fe2As2 with electronic phase separation
D. S. Inosov, A. Leineweber, Xiaoping Yang +12
We present x-ray powder diffraction (XRPD) and neutron diffraction measurements on the slightly underdoped iron pnictide superconductor Ba(1-x)K(x)Fe2As2, Tc = 32K. Below the magne…