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Comment on "Infrared signature of the superconducting gap symmetry in iron-arsenide superconductors", Y. M. Dai et al. arXiv:1106.4430
A. Charnukha, O. V. Dolgov, A. A. Golubov +2
Y. M. Dai et al. in their recent work arXiv:1106.4430 presented a reflectivity study of the in-plance optical conductivity of a $\textrm{Ba}_{0.6}\textrm{K}_{0.4}\textrm{Fe}_2\text…
Fusion of bogoliubons in BaKFeAs and similarity of energy scales in high temperature superconductors
D. V. Evtushinsky, T. K. Kim, A. A. Kordyuk +10
Usually the superconducting pairing is considered to modify electronic states only in a narrow momentum range close to the Fermi surface. Here we present a direct experimental obse…
Crossover from weak to strong pairing in unconventional superconductors
D. S. Inosov, J. T. Park, A. Charnukha +4
Superconductors are classified by their pairing mechanism and the coupling strength, measured as the ratio of the energy gap to the critical temperature, Tc. We present an extensiv…
Superconductivity-induced optical anomaly in an iron arsenide
A. Charnukha, P. Popovich, Y. Matiks +5
One of the central tenets of conventional theories of superconductivity, including most models proposed for the recently discovered iron-pnictide superconductors, is the notion tha…