4 papers
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…
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…
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…