Publication | Open Access
Tunneling Spectroscopy of High T<sub>c</sub> Oxide Superconductors with a Scanning Tunneling Microscope
15
Citations
4
References
1987
Year
Superconducting MaterialEngineeringBismuth-based SuperconductorsLarge δTunneling MicroscopyNovel SuperconductorsSuperconductivityQuantum MaterialsTunneling MicroscopeHigh Tc SuperconductorsCleaved SamplesSuperconducting DevicesLow-temperature SuperconductivityMaterials ScienceOxide HeterostructuresHigh-tc SuperconductivityPhysicsHigh-temperature SuperconductivitySpectroscopyCryogenicsCondensed Matter PhysicsApplied PhysicsNatural SciencesScanning Probe MicroscopyCurrent Depairing Term
Tunneling experiments were performed on cleaved samples of high T c oxide superconductors. The data can be fitted by introducing a current depairing term into the BCS density of states. This demonstrates the importance of depairing mechanisms in tunneling studies of these high T c materials. Large Δ with 2Δ/kT c as large as 11 was obtained. The gap values are different for different junctions.
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