18 citations · 42 across the 4 of their papers we have counts for
5 papers
Anomalous superconducting state in LiFeAs implied by the As Knight shift measurement
S. -H. Baek, L. Harnagea, S. Wurmehl +2
As NMR investigation of a single crystal of superconducting LiFeAs is presented. The Knight shift and the \textit{in situ} ac susceptibility measurements as a function of te…
Acoustic and optical phonon dynamics from femtosecond time-resolved optical spectroscopy of superconducting iron pnictide Ca(Fe_0.944Co_0.056)_2As_2
Sunil Kumar, L. Harnagea, S. Wurmehl +2
We report temperature evolution of coherently excited acoustic and optical phonon dynamics in superconducting iron pnictide single crystal Ca(Fe_0.944Co_0.056)_2As_2 across the spi…
Ultrafast quasiparticle dynamics in superconducting iron pnictide CaFe1.89Co0.11As2
Sunil Kumar, L. Harnagea, S. Wurmehl +2
Nonequilibrium quasiparticle relaxation dynamics is reported in superconducting CaFe1.89Co0.11As2 single crystal using femtosecond time-resolved pump-probe spectroscopy. The carrie…
Gap-dependent quasiparticle dynamics and coherent acoustic phonons in parent iron pnictide CaFe2As2 across the spin density wave phase transition
Sunil Kumar, L. Harnagea, S. Wurmehl +2
We report ultrafast quasiparticle (QP) dynamics and coherent acoustic phonons in undoped CaFe_2As_2 iron pnictide single crystals exhibiting spin-density wave (SDW) and concurrent…
Slater-Pauling Rule and Curie-Temperature of Co-based Heusler compounds
G. H. Fecher, H. C. Kandpal, S. Wurmehl +2
A concept is presented serving to guide in the search for new materials with high spin polarization. It is shown that the magnetic moment of half-metallic ferromagnets can be calcu…