SUPERCONDUCTING COULOMB-BLOCKADE ELECTROMETERS WITH TUNABLE JOSEPHSONCOUPLING

Authors
AMAR A SONG D LOBB CJ WELLSTOOD FC
Citation
A. Amar et al., SUPERCONDUCTING COULOMB-BLOCKADE ELECTROMETERS WITH TUNABLE JOSEPHSONCOUPLING, IEEE transactions on applied superconductivity, 7(2), 1997, pp. 3544-3547
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
7
Issue
2
Year of publication
1997
Part
3
Pages
3544 - 3547
Database
ISI
SICI code
1051-8223(1997)7:2<3544:SCEWTJ>2.0.ZU;2-C
Abstract
We report measurements made on superconducting Al-AlOx-Al Coulomb-bloc kade electrometers with fixed gap Delta and charging energy E-c, but t unable Josephson coupling E-j via application of a magnetic field. Thi s allows us to investigate the effects of changing the E-j/E-c ratio o n the device characteristics. We compare the observed modulation with respect to magnetic field and gate voltage with the theoretical predic tions in the supercurrent region.