M. M. Korshunov

Theory of magnetic excitations in iron-based layered superconductors

Based on the effective four-band model we analyze the spin response in the normal and superconducting states of the Fe-pnictide superconductors. While the normal state spin excitations are dominated by the continuum of the interorbital antiferromagnetic fluctuations and the intraband spin density wave fluctuations, the unconventional superconductivity yields different feedback. The resonance peak in form of the well-defined spin exciton occurs {\it only} for the interband scattering at the antiferromagnetic momentum

Hybrid LDA and generalized tight-binding method for electronic structure calculations of strongly correlated electron systems

{\bf Q}_{AFM}

Evolution of symmetry and structure of the gap in iron-based superconductors with doping and interactions

for the

Theory of Raman response of a superconductor with extended s-wave symmetry: Application to the iron pnictides

s_\pm

Gap symmetry in KFe 2 As 2 and the cos 4 θ gap component in LiFeAs

(extended s-wave) superconducting order parameter and it disappears rapidly for

Itinerant in-plane magnetic fluctuations and many-body correlations in NaxCoO2

{\bf q} < {\bf Q}_{AFM}

Doping evolution of itinerant magnetic fluctuations in Fe-based pnictides

. The resonance feature is extremely weak for the

Effective Hamiltonian and properties of the normal and superconducting phases of n-type cuprates

d_{x^2 -y^2}

Spin resonance peak in Fe-based superconductors with unequal gaps

-wave order parameter due to specific Fermi surface topology of these compounds. The essential difference between

Electronic structure and properties of high-Tc superconducting cuprates in the normal and superconducting phases within the LDA + GTB approach

s_\pm