Evidence for multiband superconductivity in the heavy fermion compound UNi2Al3
Physical review letters. Bd. 93. H. 9. 2004 S. 097001 - 097004
Erscheinungsjahr: 2004
ISBN/ISSN: 0031-9007
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1103/PhysRevLett.93.097001
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Inhaltszusammenfassung
Epitaxial thin films of the heavy fermion superconductor UNi2Al3 with Tcmax=0.98???K were investigated. The transition temperature Tc depends on the current direction which can be related to superconducting gaps opening at different temperatures. Also the influence of the magnetic ordering at TN?5???K on R(T) is strongly anisotropic, indicating different coupling between the magnetic moments and itinerant charge carriers on the multisheeted Fermi surface. The upper critical field Hc2(T) sugge...Epitaxial thin films of the heavy fermion superconductor UNi2Al3 with Tcmax=0.98???K were investigated. The transition temperature Tc depends on the current direction which can be related to superconducting gaps opening at different temperatures. Also the influence of the magnetic ordering at TN?5???K on R(T) is strongly anisotropic, indicating different coupling between the magnetic moments and itinerant charge carriers on the multisheeted Fermi surface. The upper critical field Hc2(T) suggests an unconventional spin-singlet superconducting state.» weiterlesen» einklappen
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
