Resonant transmission of normal electrons through Andreev states in ferromagnets

Abstract

Giant oscillations of the conductance of a superconductor - ferromagnet - superconductor Andreev interferometer are predicted. The effect is due to the resonant transmission of normal electrons through Andreev levels when the voltage $V$ applied to the ferromagnet is close to $2h_0/e$ ($h_0$ is the spin-dependant part of the electron energy). The effect of bias voltage and phase difference between the superconductors on the current and the differential conductance is presented. These efects allow a direct spectroscopy of Andreev levels in the ferromagnet.

4 pages, 4 figures

References in corpus (4)

• Dissipative Electron Transport through Andreev Interferometers
• Sub-gap conductance in ferromagnetic-superconducting mesoscopic structures
• Anomalous transport in normal-superconducting and ferromagnetic-superconducting nanostructures
• Resonant tunneling through Andreev levels

Cited by in corpus (6)

• Resonant proximity effect in normal metal / diffusive ferromagnet / superconductor junctions
• Resonant peak in the density of states in the normal metal / diffusive ferromagnet / superconductor junctions
• Charge and Spin Effects in Mesoscopic Josephson Junctions
• Spin-polarized proximity effect in superconducting junctions
• Phase-Controlled Force and Magnetization Oscillations in Superconducting Ballistic Nanowires
• Nonequilibrium Transport in Superconductor/Ferromagnet/Superconductor Diffusive Junctions: Interplay between Proximity Effect and Ferromagnetism