Influence of irradiation induced disorder on superconductivity and electrical resistivity of thin films of the heavy fermion system CeCu2Si2
Journal of Magnetism and Magnetic Materials. Bd. 63-64. 1986 S. 475 - 477
Erscheinungsjahr: 1986
ISBN/ISSN: 0304-8853
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
Doi/URN: 10.1016/0304-8853(87)90641-X
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Inhaltszusammenfassung
The influence of lattice defects produced by low temperature irradiation with 25 MeV 16O-ions on (T) and Tc of thin films of CeCu2Si2 is reported. Besides a nearly temperature independent additive increase of (T) the main effects are a shift of the low temperature maximum in (T) to lower temperatures and a reduction of the temperature range where a T2-dependence is observed. The most striking result is the extreme sensitivity of Tc to lattice defects, resulting in a complete suppression of Tc...The influence of lattice defects produced by low temperature irradiation with 25 MeV 16O-ions on (T) and Tc of thin films of CeCu2Si2 is reported. Besides a nearly temperature independent additive increase of (T) the main effects are a shift of the low temperature maximum in (T) to lower temperatures and a reduction of the temperature range where a T2-dependence is observed. The most striking result is the extreme sensitivity of Tc to lattice defects, resulting in a complete suppression of Tc (<6 mK) at an estimated concentration of displaced atoms of about 1%. » weiterlesen» einklappen
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
