107 citations · 178 across the 4 of their papers we have counts for
4 papers
Kondo Behavior of U in CaB
G. A. Wigger, E. Felder, S. Weyeneth +2
Replacing U for Ca in semiconducting CaB at the few at.% level induces metallic behaviour and Kondo-type phenomena at low temperatures, a rather unusual feature for U impuritie…
Percolation and Colossal Magnetoresistance in Eu-based Hexaborides
G. A. Wigger, C. Beeli, E. Felder +3
Upon substituting Ca for Eu in the local-moment ferromagnet EuB, the Curie temperature decreases substantially with increasing dilution of the magnetic sublattice and is…
Electronic transport in EuB
G. A. Wigger, R. Monnier, H. R. Ott +2
EuB is a magnetic semiconductor in which defects introduce charge carriers into the conduction band with the Fermi energy varying with temperature and magnetic field. We presen…
Strong Electron-Phonon Coupling in Superconducting MgB: A Specific Heat Study
Ch. Wälti, E. Felder, C. Degen +4
We report on measurements of the specific heat of the recently discovered superconductor MgB in the temperature range between 3 and 220 K. Based on a modified Debye-Einstein mo…