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16 papers · 1 filter
Andreev reflection spectroscopy of the new Fe-based superconductor EuAsFeO0.85F0.15: evidence for the strong order parameter anisotropy
V. M. Dmitriev, E. P. Khlybov, D. S. Kondrashov +6
Andreev reflection spectra have been measured in a new superconductor EuAsFeO0.85F0.15 having an unexpectedly low superconducting transition temperature Tc~11.3 K among related FeA…
Nanopattern-stimulated superconductor-insulator transition in thin TiN films
T. I. Baturina, V. M. Vinokur, A. Yu. Mironov +3
We present the results of the comparative study of the influence of disorder on transport properties in continuous and nanoperforated TiN films. We show that nanopatterning turns a…
Two-band BCS superconductivity in Ba(Fe0.9Co0.1)2As2
E. G. Maksimov, A. E. Karakozov, B. P. Gorshunov +9
The conductivity and permittivity optical spectra of iron-pnictide Ba(Fe0.9Co0.1)2As2 film (Tc=20 K) are analyzed. In the superconducting state, at all temperatures up to Tc the te…
Complex Phase Behavior of The System of Particles with Smooth Potential with Repulsive Shoulder and Attractive Well
Yu. D. Fomin, V. N. Ryzhov, E. N. Tsiok
We report a detailed simulation study of the phase behavior of core softened system with attractive well. Different repulsive shoulder widthes and attractive well depthes are consi…
Stimulation of the fluctuation superconductivity by the PT-symmetry
N. M. Chtchelkatchev, A. A. Golubov, T. I. Baturina +1
We discuss fluctuations near the second order phase transition where the free energy has an additional non-Hermitian term. The spectrum of the fluctuations changes when the odd-par…
Potts spin glasses with 3, 4 and 5 states near : expanding around the replica symmetric solution
N. V. Gribova, T. I. Schelkacheva, E. E. Tareyeva
Expansion for the free energy functionals of the Potts spin glass models with 3, 4 and 5 states up to the fourth order in around the replica symmetric solution (RS) is in…