10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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9 papers · 2 filters
Bulk magnetization and strong intrinsic pinning in Ni-doped BaFe2As2 single crystals
K. S. Pervakov, V. A. Vlasenko, E. P. Khlybov +3
We report on measurements of isothermal irreversible magnetization loops (M(H)) of Ni-doped BaFe2-xNixAs2 single crystals with x=0.1 and x=0.14 in magnetic fields up to 14T. For bo…
Multigap Superconductivity in GdFeAsO Evidenced by SnS-Andreev Spectroscopy
T. E. Shanygina, S. A. Kuzmichev, M. G. Mikheev +8
Using intrinsic multiple Andreev reflection effect (IMARE) spectroscopy we studied superconducting properties of nearly optimal oxygen-deficient GdFeAsO polycrystalline sa…
Manifestation of impurity induced s_{+-} -> s_{++} transition: multiband model for dynamical response functions
D. V. Efremov, A. A. Golubov, O. V. Dolgov
We investigate effects of disorder on the density of states, the single particle response function and optical conductivity in multiband superconductors with s_{+-} symmetry of the…
Investigation of LiFeAs by means of "Break-junction" Technique
S. A. Kuzmichev, T. E. Shanygina, I. V. Morozov +4
In our tunneling investigation using Andreev superconductor - normal metal - superconductor contacts on LiFeAs single crystals we observed two reproducible independent subharmonic…
Study of the Two-Gap Superconductivity in GdO(F)FeAs by ScS-Andreev Spectroscopy
T. E. Shanygina, Ya. G. Ponomarev, S. A. Kuzmichev +9
Current-voltage characteristics and dynamic conductance of the superconductor - constriction - superconductor junctions in GdO(F)FeAs polycrystalline samples with critical temperat…
Andreev interferometer with three superconducting electrodes
A. V. Galaktionov, A. D. Zaikin, L. S Kuzmin
We develop a quasiclassical theory of Andreev interferometers with three superconducting electrodes. Provided tunneling interface resistance between one superconducting electrode a…
Gap like structure in a nonsuperconducting layered oxycarbonate BiSrCuCOO single crystal
S. I. Vedeneev, B. A. Piot, D. K. Maude
The magnetic field and temperature dependence of the in-plane tunneling conductance in high-quality nonsuperconducting (down to 10 mK) layered oxycarbonate BiSr$…
Theory of a large thermoeffect in superconductors doped with magnetic impurities
Mikhail S. Kalenkov, Andrei D. Zaikin, Leonid S. Kuzmin
We argue that parametrically strong enhancement of a thermoelectric current can be observed in conventional superconductors doped by magnetic impurities. This effect is caused by v…
Observation of Multiple Superconducting Gaps in the Infrared Reflectivity Spectra of Ba(Fe0.9Co0.1)2As2
Yu. A. Aleshchenko, A. V. Muratov, V. M. Pudalov +4
The results of infrared reflectivity measurements for the iron-based high-temperature superconductor Ba(Fe0.9Co0.1)2As2 are reported. The reflectivity is found to be close to unity…