Control of interference effects in a two-dimensional-electron-gas/superconductor junction by the Josephson effect

Th. Schäpers; R. P. Müller; A. Kaluza

doi:10.1103/PhysRevB.67.060502

← Back to search

Control of interference effects in a two-dimensional-electron-gas/superconductor junction by the Josephson effect

Th. Schäpers, R. P. Müller, A. Kaluza

DOI 10.1103/PhysRevB.67.060502 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The effect of quasiparticle interferences on the transport between a two-dimensional electron gas in an InxGa1−xAs/InP heterostructure and the superconducting Nb electrodes of a Josephson junction is studied. The phase difference between the superconducting electrodes leading to the interference effects is adjusted by the Josephson effect. The quasiparticle interference results in a conductance plateau with a maximum at zero bias current through the Josephson junction. By applying a magnetic field the interference effect can be controlled.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	8	Pressure not reported	unknown