Regensburg 2002 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 16: Neue und unkonventionelle Supraleiter II
TT 16.7: Vortrag
Mittwoch, 13. März 2002, 16:00–16:15, H18
Anisotropic superconductivity in borocarbides: - a comparison with other exotic superconductors — •S.-L. Drechsler1, I. Opahle1, H. Rosner2, S.V. Shulga1, H. Eschrig1, G. Fuchs1, K.-H. Müller1, G. Behr1, W. Löser1, and H. Bitterlich1 — 1Institut f. Festkörper- u. Werkstofforsch., D-01171 Dresden, Postfach 270116, Germany — 2Department of Physics, University of California Davis, USA
The electronic structure, the isotope effect for the critical temperature, and the upper critical field in rare earth transition metal borocarbides(nitrides) are discussed with respect to somewhat unexpected similarities with as well as to clear differences from cuprate superconductors, MgB2, and URu2Si2. Peculiarities of small grains in powder samples ascribed sometimes to anisotropy effects are considered as well.