Volume 49, Number 2, January II 2000
|Page(s)||237 - 243|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Effect of the electromagnetic environment on arrays of small normal metal tunnel junctions: Numerical and experimental investigation
Department of Physics, University of Jyväskylä P.O. Box 35 (Y5),
FIN-40351, Jyväskylä, Finland
Accepted: 8 November 1999
We present results of a set of experiments to investigate the effect of a dissipative external electromagnetic environment on tunneling in linear arrays of junctions in the weak-tunneling regime. The influence of this resistance decreases as the number of junctions in the chain increases and ultimately becomes negligible. Further, there is a value of external impedance, typically , at which the half-width of the zero-voltage dip in the conductance curve shows a maximum. Some new analytical formulae, based on the phase-correlation theory, along with numerical results will be presented.
PACS: 73.23.Hk – Coulomb blockade; single-electron tunneling / 73.40.Gk – Tunneling / 73.40.Rw – Metal insulator metal structures
© EDP Sciences, 2000
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