Andreev resonances in the current-voltage characteristics of a normal-metal--superconductor junction

Journal Article · Thu Jun 15 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.51.16936· OSTI ID:69480

Chaudhuri, S; Bagwell, P F ^[1]

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1. School of Electrical Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

We calculate the current-voltage characteristic of a normal-metal--superconductor (NS) junction having a one-, two-, or three-dimensional electron emitter. An additional tunneling barrier is also placed in the junction, allowing the formation of quasibound Andreev energy levels. The resulting conductance resonances are strongest for a normal-metal--insulator--normal-metal--superconductor (NINS) junction, and are identical to the Rowell-McMillan oscillations in the three-dimensional case. Andreev resonances in the conductance of a NS junction generally become stronger when the electronic motion is confined to one dimension.

• OSTI ID: 69480
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 23 Vol. 51; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOGOLYUBOV TRANSFORMATION
ELECTRIC CURRENTS
ENERGY LEVELS
SUPERCONDUCTING JUNCTIONS
TUNNEL EFFECT