64 citations · 341 across the 29 of their papers we have counts for
45 papers · 1 filter
Superconductivity in Fe and As based compounds: a bridge between MgB2 and cuprates
A. Bussmann-Holder, A. Simon, H. Keller +1
By interpreting various experimental data for the new high temperature FeAs type superconductors in terms of lattice mediated multi gap superconductivity, it is shown that these sy…
Identifying the pairing mechanism in Fe-As based superconductors: gaps and isotope effects
A. Bussmann-Holder, A. Simon, H. Keller +1
The temperature dependencies of the coupled superconducting gaps, observed in Fe-As based superconducting compounds is calculated and a universal temperature scaling observed which…
Superconductivity at 23 K and Low Anisotropy in Rb-Substituted BaFe_2As_2 Single Crystals
Z. Bukowski, S. Weyeneth, R. Puzniak +6
Single crystals of Ba_{1-x}Rb_{x}Fe_2As_2 with x=0.05-0.1 have been grown from Sn flux and are bulk superconductors with T_c up to 23 K. The crystal structure was determined by X-r…
Towards the Theory of Isotope Effect of the London Penetration Depth in Cuprates
I. E. Lyubin, M. V. Eremin, I. M. Eremin +1
The expressions for the superfluid density have been discussed in both weak and strong coupling approaches. The numerical calculations of temperature and isotope composition depend…
Evidence for two distinct anisotropies in the oxypnictide superconductors SmFeAsO_(0.8)F_(0.2) and NdFeAsO_(0.8)F_(0.2)
S. Weyeneth, R. Puzniak, N. D. Zhigadlo +4
Single crystals of the oxypnictide superconductors SmFeAsO_(0.8)F_(0.2) and NdFeAsO_(0.8)F_(0.2) with T_c in the range of 44 K to 48 K were investigated by torque magnetometry. An…
Polaron Coherence as Origin of the Pseudogap Phase in High Temperature Superconducting Cuprates
A. Bussmann-Holder, H. Keller, A. R. Bishop +2
Within a two component approach to high Tc copper oxides including polaronic couplings, we identify the pseudogap phase as the onset of polaron ordering. This ordering persists in…