Effect of the electromagnetic environment on arrays of small normal metal tunnel junctions: Numerical and experimental investigation

Sh Farhangfar; A. J. Manninen; J.P. Pekola

doi:10.1209/epl/i2000-00139-0

Effect of the electromagnetic environment on arrays of small normal metal tunnel junctions: Numerical and experimental investigation

Sh Farhangfar^*, A. J. Manninen, J.P. Pekola

^*Corresponding author for this work

Not published at VTT

University of Jyväskylä

Research output: Contribution to journal › Article › Scientific › peer-review

7 Citations (Scopus)

Abstract

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 ∼ 0.5 kΩ, 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.

Original language	English
Pages (from-to)	237-243
Number of pages	7
Journal	Europhysics Letters
Volume	49
Issue number	2
DOIs	https://doi.org/10.1209/epl/i2000-00139-0
Publication status	Published - 11 Jan 2000
MoE publication type	A1 Journal article-refereed

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abstract = "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 ∼ 0.5 kΩ, 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.",

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AB - 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 ∼ 0.5 kΩ, 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.

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Effect of the electromagnetic environment on arrays of small normal metal tunnel junctions: Numerical and experimental investigation

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