Experimental evidence of low frequency defect vibrations in the fcc metal lead observed by superconducting tunneling
Solid State Communications. Bd. 51. 1984 S. 305 - 308
Erscheinungsjahr: 1984
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
Doi/URN: 10.1016/0038-1098(84)90693-8
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Inhaltszusammenfassung
Superconducting tenneling measurements of Al-AlxOy-Pb junctions taken after low temperature irradiation with 10 MeV oxygen ions are reported. The normalized differential conductance ?norm = (dI/dU)s/ (dI/dU)n shows additional low frequency structures to an enhancement of the Eliashberg function ?2F(?) in the range from 1.5 to 3.2 meV. The position in energy and the annealing behaviour corroborate that vibrational modes or irradiation induced self-interstitials are observed.
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
