Abstract
The copper oxide superconductors are considered to have stacking structures of strongly and weakly super-conducting layers. Using this model, the tunneling conductance in a junction of the superconductor and a normal metal is calculated as a function of bias voltage. The calculation predicts that a characteristic fine structure appears inside the superconducting gap in the tuneling spectrum at low temperatures.
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Tachiki, M., Takahashi, S., Steglich, F. et al. Tunneling conductance in layered oxide superconductors. Z. Physik B - Condensed Matter 80, 161–166 (1990). https://doi.org/10.1007/BF01357497
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DOI: https://doi.org/10.1007/BF01357497