6533b839fe1ef96bd12a5c5c
RESEARCH PRODUCT
Proximity-induced Josephson-quasiparticle process in a single-electron transistor
Antti ManninenR. S. PoikolainenJukka P. PekolaTomi Ryynänensubject
SuperconductivityPhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsBand gapCondensed Matter - SuperconductivityTransistorFOS: Physical sciencesCoulomb blockadeCondensed Matter::Mesoscopic Systems and Quantum Hall Effectlaw.inventionSuperconductivity (cond-mat.supr-con)lawCondensed Matter::SuperconductivityMesoscale and Nanoscale Physics (cond-mat.mes-hall)Proximity effect (superconductivity)QuasiparticleCondensed Matter::Strongly Correlated ElectronsQuantum tunnellingVoltagedescription
We have performed the first experiments in a superconductor - normal metal - superconductor single electron transistor in which there is an extra superconducting strip partially overlapping the normal metal island in good metal-to-metal contact. Superconducting proximity effect gives rise to current peaks at voltages below the quasiparticle threshold. We interpret these peaks in terms of the Josephson-quasiparticle process and discuss their connection with the proximity induced energy gap in the normal metal island.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-11-02 | Physical Review B |