Observation of strong coulomb blockade in resistively isolated tunnel junctions

Wei Zheng; J. R. Friedman; D. V. Averin; Siyuan Han; J. E. Lukens

doi:10.1016/S0038-1098(98)00439-6

Observation of strong coulomb blockade in resistively isolated tunnel junctions

Wei Zheng
, J. R. Friedman
, D. V. Averin
, Siyuan Han
, J. E. Lukens

Physics and Astronomy

Stony Brook University
University of Kansas

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

25 Scopus citations

Abstract

We report measurements of the Coulomb-blockade current in resistively isolated (R_Isol ≫ h/e²) tunnel junctions for the temperature range 60 mK < T < 230 mK where the charging energy E_c is much greater than the thermal energy. A zero-bias resistance R₀ of up to 10⁴R_T (the tunnel resistance of the bare junction) is obtained. For eV ≪ E_c, the I-V curves for a given R_Isol scale as a function of V/T, with I ∝ V^α(RIsol) over a range of V. The data agree well with numerical calculations of the tunneling rate that include environmental effects.

Original language	English
Pages (from-to)	839-843
Number of pages	5
Journal	Solid State Communications
Volume	108
Issue number	11
DOIs	https://doi.org/10.1016/S0038-1098(98)00439-6
State	Published - Nov 13 1998

Keywords

A. nanostructures
D. Coulomb blockade
D. Luttinger liquids
D. tunneling

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10.1016/S0038-1098(98)00439-6

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title = "Observation of strong coulomb blockade in resistively isolated tunnel junctions",

abstract = "We report measurements of the Coulomb-blockade current in resistively isolated (RIsol ≫ h/e2) tunnel junctions for the temperature range 60 mK < T < 230 mK where the charging energy Ec is much greater than the thermal energy. A zero-bias resistance R0 of up to 104RT (the tunnel resistance of the bare junction) is obtained. For eV ≪ Ec, the I-V curves for a given RIsol scale as a function of V/T, with I ∝ Vα(RIsol) over a range of V. The data agree well with numerical calculations of the tunneling rate that include environmental effects.",

keywords = "A. nanostructures, D. Coulomb blockade, D. Luttinger liquids, D. tunneling",

author = "Wei Zheng and Friedman, \{J. R.\} and Averin, \{D. V.\} and Siyuan Han and Lukens, \{J. E.\}",

year = "1998",

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doi = "10.1016/S0038-1098(98)00439-6",

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pages = "839--843",

journal = "Solid State Communications",

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TY - JOUR

T1 - Observation of strong coulomb blockade in resistively isolated tunnel junctions

AU - Zheng, Wei

AU - Friedman, J. R.

AU - Averin, D. V.

AU - Han, Siyuan

AU - Lukens, J. E.

PY - 1998/11/13

Y1 - 1998/11/13

N2 - We report measurements of the Coulomb-blockade current in resistively isolated (RIsol ≫ h/e2) tunnel junctions for the temperature range 60 mK < T < 230 mK where the charging energy Ec is much greater than the thermal energy. A zero-bias resistance R0 of up to 104RT (the tunnel resistance of the bare junction) is obtained. For eV ≪ Ec, the I-V curves for a given RIsol scale as a function of V/T, with I ∝ Vα(RIsol) over a range of V. The data agree well with numerical calculations of the tunneling rate that include environmental effects.

AB - We report measurements of the Coulomb-blockade current in resistively isolated (RIsol ≫ h/e2) tunnel junctions for the temperature range 60 mK < T < 230 mK where the charging energy Ec is much greater than the thermal energy. A zero-bias resistance R0 of up to 104RT (the tunnel resistance of the bare junction) is obtained. For eV ≪ Ec, the I-V curves for a given RIsol scale as a function of V/T, with I ∝ Vα(RIsol) over a range of V. The data agree well with numerical calculations of the tunneling rate that include environmental effects.

KW - A. nanostructures

KW - D. Coulomb blockade

KW - D. Luttinger liquids

KW - D. tunneling

UR - https://www.scopus.com/pages/publications/0345913693

U2 - 10.1016/S0038-1098(98)00439-6

DO - 10.1016/S0038-1098(98)00439-6

M3 - Article

AN - SCOPUS:0345913693

SN - 0038-1098

VL - 108

SP - 839

EP - 843

JO - Solid State Communications

JF - Solid State Communications

IS - 11

ER -

Observation of strong coulomb blockade in resistively isolated tunnel junctions

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Keywords

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