2 research outputs found
THz electrodynamics of BaFe1.91Ni0.09As2 film analyzed in the framework of multiband Eliashberg theory
The temperature dependences of the plasma frequency, superfluid density and
London penetration depth were determined from terahertz spectra of conductivity
and dielectric permittivity of BaFeNiAs film with
critical temperature ~K. Part of experimental data were analyzed
within a simple three-band Eliashberg model where the mechanism of
superconducting coupling is mediated by antiferromagnetic spin fluctuations,
whose characteristic energy scales with according to the
empirical law , and with a total electron-boson
coupling strength .Comment: 15 pages, 6 figure