Measurement of the Fermi Velocity in Single-Crystal Films of Lead by Electron Tunneling
- 30 November 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 25 (22), 1578-1580
- https://doi.org/10.1103/physrevlett.25.1578
Abstract
The authors have successfully exploited the Tomasch effect in quasiparticle tunneling from thick, superconducting, single-crystal Pb films to measure Fermi velocities in three high-symmetry directions. Multiple gaps were observed in all of these directions which agree with those reported earlier in bulk single-crystal studies, indicating that these films behave in a fashion similar to bulk Pb.Keywords
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