Inhaltszusammenfassung

Critical temperature Tc and transition width T? of 5-?m Nb3Sn samples (chemical vapor deposition) have been measured as functions of 25-MeV oxygen irradiation below 30 K and isochronal annealing up to 410 K. After the known strong reduction, Tc shows at high fluences leveling-off effects, a flat minimum followed by an increase revealing competing superimposed disorder mechanisms. Significant recovery of Tc and T? to lower values is observed. Results are discussed in terms of atomic disorderin...Critical temperature Tc and transition width T? of 5-?m Nb3Sn samples (chemical vapor deposition) have been measured as functions of 25-MeV oxygen irradiation below 30 K and isochronal annealing up to 410 K. After the known strong reduction, Tc shows at high fluences leveling-off effects, a flat minimum followed by an increase revealing competing superimposed disorder mechanisms. Significant recovery of Tc and T? to lower values is observed. Results are discussed in terms of atomic disordering and compared to n and He experiments at room temperatures. » weiterlesen» einklappen

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Klassifikation

DFG Fachgebiet:
Physik der kondensierten Materie

DDC Sachgruppe:
Physik