Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1999-10-15
Europhys.Lett. 49 (2), pp. 237-243 (2000)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
11 pages, 1 table, 3 postscript figures
Scientific paper
10.1209/epl/i2000-00139-0
We present results of a set of experiments to investigate the effect of 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 \~5 k$\Omega$, 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.
Farhangfar Sh.
Manninen A. J.
Pekola Jukka P.
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