COULOMB OSCILLATIONS IN DOUBLE METAL TUNNEL-JUNCTIONS

Citation
Lj. Geerligs et al., COULOMB OSCILLATIONS IN DOUBLE METAL TUNNEL-JUNCTIONS, Physica. B, Condensed matter, 194, 1994, pp. 1267-1268
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
1267 - 1268
Database
ISI
SICI code
0921-4526(1994)194:<1267:COIDMT>2.0.ZU;2-P
Abstract
The Coulomb blockade of electron tunneling through two tunnel junction s in series can be suppressed periodically by applying a gate voltage to the central island. The resulting conductance peaks (''Coulomb osci llations'') have been studied in aluminum-oxide- aluminum tunnel junct ions. For decreasing temperature the peaks narrow, in agreement with t heoretical predictions for a continuous energy spectrum of the island. We observe an increase of the conductance in the tails of the peaks f or lower resistance devices, well described by thermally enhanced inel astic electron co-tunneling.