Resonant transmission of normal electrons through Andreev states in ferromagnets

Authors
Kadigrobov, A Shekhter, RI Jonson, M Ivanov, ZG
Citation
A. Kadigrobov et al., Resonant transmission of normal electrons through Andreev states in ferromagnets, PHYS REV B, 60(21), 1999, pp. 14593-14596
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
21
Year of publication
1999
Pages
14593 - 14596
Database
ISI
SICI code
0163-1829(199912)60:21<14593:RTONET>2.0.ZU;2-B
Abstract
Giant oscillations of the conductance of a superconductor-ferromagnet-super conductor Andreev interferometer are predicted. The effect is due to the re sonant transmission of normal electrons through Andreev levels when the vol tage V applied to the ferromagnet is close to 2h(0)/e (h(0) is the spin-dep endent part of the electron energy). The effect of bias voltage and phase d ifference,between the: superconductors on the current and the differential conductance is presented. These effects allow a direct spectroscopy of Andr eev levels in the ferromagnet. [S0163-1829(99)04545-2].