19 citations · 44 across the 9 of their papers we have counts for
9 papers · 1 filter
Critical point of the transition between and states of a two-band superconductor with nonmagnetic impurities
V. A. Shestakov, M. M. Korshunov
Behavior of the Grand thermodynamic potential along with its derivatives, entropy and specific heat, is considered within a two-band model of an unconventional superconduct…
Grand thermodynamic potential in a two-band unconventional superconductor
V. A. Shestakov, M. M. Korshunov
In a two-band system, both conventional sign-preserving and unconventional sign-changing superconducting state may appear at low temperatures. Moreover, they may…
Relative phase between superconducting order parameter components in a two-band model with impurities
V. A. Shestakov, M. M. Korshunov
We obtain solutions for Eliashberg equations within the Nambu representation for a two-band model of iron-based superconductors with nonmagnetic impurities. Two cases of a transiti…
Thermodynamics of transition in iron pnictides in the vicinity of the Born limit
Vadim Shestakov, Maxim M. Korshunov
To study thermodynamical properties of the disorder-induced transition between and superconducting gap functions, we calculate the grand thermodynamic potential…
Decisive proofs of the transition in the temperature dependence of the magnetic penetration depth
V. A. Shestakov, M. M. Korshunov, Yu. N. Togushova +1
One of the features of the unconventional state in iron-based superconductors is possibility to transform to the state with the increase of the nonmagnetic disorde…
Temperature-dependent transitions in the multiband model for Fe-based superconductors with impurities
V. A. Shestakov, M. M. Korshunov, O. V. Dolgov
We study the dependence of the superconducting gaps on both the disorder and the temperature within the two-band model for iron-based materials. In the clean limit, the system is i…
Details of the disorder-induced transition between and states in two-band model for Fe-based superconductors
V. A. Shestakov, M. M. Korshunov, Yu. N. Togushova +2
Irradiation of superconductors with different particles is one of many ways to investigate effects of disorder. Here we study the disorder-induced transition between and $s…
Impurity-induced smearing of the spin resonance peak in Fe-based superconductors
Yu. N. Togushova, V. A. Shestakov, M. M. Korshunov
The spin resonance peak in the iron-based superconductors is observed in inelastic neutron scattering experiments and agrees well with predicted results for the extended s-wave ($s…
Spin resonance peak in Fe-based superconductors with unequal gaps
M. M. Korshunov, V. A. Shestakov, Yu. N. Togushova
We study the spin resonance in superconducting state of iron-based materials within multiband models with two unequal gaps, and , on different Fermi surface pockets. We…