Resonant tunneling through Andreev levels

✍ Scribed by A Kadigrobov; L.Y Gorelik; R.I Shekhter; M Jonson

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 162 KB
• Volume: 25
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1999.0742

✦ Synopsis

We use a semiclassical approach for analyzing the tunneling transport through a normal conductor in contact with superconducting mirrors. Our analysis of the electron-hole propagation along semiclassical trajectories shows that resonant transmission through Andreev levels is possible resulting in an excess, low-energy quasiparticle contribution to the conductance. The excess conductance oscillates with the phase difference between the superconductors having maxima at odd multiples of π for temperatures much below the Thouless temperature.