Comparison of impurity effects in heavy-fermion systems and high- Tc superconductors
Journal of magnetism and magnetic materials. Bd. 76/77. 1988 S. 533 - 535
Erscheinungsjahr: 1988
ISBN/ISSN: 0304-8853
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1016/0304-8853(88)90479-9
| Geprüft | Bibliothek |
Inhaltszusammenfassung
Since electronic correlations are considered to be of crucial importance for the electronic properties of both heavy-fermion systems and high-Tc superconductors we studied the influence of impurity atoms on the substitutional systems Ce1?xLaxCu6 and YBa2(Cu1?xTx)3O7?? with T = NiandZn. For the heavy-fermion system the main effect is the dissapearance of the low temperature anomalies in resistivity (T), magnetoresistivity ?(B, T) and Hall-coefficient RH(T) associated with the formation of a co...Since electronic correlations are considered to be of crucial importance for the electronic properties of both heavy-fermion systems and high-Tc superconductors we studied the influence of impurity atoms on the substitutional systems Ce1?xLaxCu6 and YBa2(Cu1?xTx)3O7?? with T = NiandZn. For the heavy-fermion system the main effect is the dissapearance of the low temperature anomalies in resistivity (T), magnetoresistivity ?(B, T) and Hall-coefficient RH(T) associated with the formation of a coherent quasiparticle state. In case of YBa2(Cu1?xTx)3O7Tc is linearly degraded with x with a slope of for Ni and -8 K/% for Zn. » weiterlesen» einklappen
Autoren
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
