Inhaltszusammenfassung

The variation of the electrical resistivity (T), Hall-effect RH(T), and magnetoresistivity ?(B,T) of thin sputtered films of the heavy fermion systems CeCu2Si2, CeCu6 and UPt3 on lattice disorder introduced by irradiation with 25 MeV 16O-ions is reported. All 3 systems exhibit sensitive dependences of their transport properties on lattice defects. In case of the Ce-based compounds the experiments show the destruction of the coherence of the heavy quasiparticle states by defects. The complex b...The variation of the electrical resistivity (T), Hall-effect RH(T), and magnetoresistivity ?(B,T) of thin sputtered films of the heavy fermion systems CeCu2Si2, CeCu6 and UPt3 on lattice disorder introduced by irradiation with 25 MeV 16O-ions is reported. All 3 systems exhibit sensitive dependences of their transport properties on lattice defects. In case of the Ce-based compounds the experiments show the destruction of the coherence of the heavy quasiparticle states by defects. The complex behavior observed for UPt3 indicates the importance of bandstructure effects for this compound. » weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
Physik der kondensierten Materie

DDC Sachgruppe:
Physik