Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling

Juha Hassel; Heikki Seppä; Julien Delahaye; Pertti Hakonen

doi:10.1063/1.1751231

Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling

Juha Hassel, Heikki Seppä, Julien Delahaye, Pertti Hakonen

Helsinki University of Technology

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

6 Citations (Scopus)

Abstract

We study a circuit where a mesoscopic Josephson junction (JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (i_n≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.

Original language	English
Pages (from-to)	8059 - 8062
Number of pages	4
Journal	Journal of Applied Physics
Volume	95
Issue number	12
DOIs	https://doi.org/10.1063/1.1751231
Publication status	Published - 2004
MoE publication type	A1 Journal article-refereed

Keywords

Josephson junction

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10.1063/1.1751231

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title = "Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling",

abstract = "We study a circuit where a mesoscopic Josephson junction (JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (in≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.",

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author = "Juha Hassel and Heikki Sepp{\"a} and Julien Delahaye and Pertti Hakonen",

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T1 - Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling

AU - Hassel, Juha

AU - Seppä, Heikki

AU - Delahaye, Julien

AU - Hakonen, Pertti

N1 - Project code: T3SU00073

PY - 2004

Y1 - 2004

N2 - We study a circuit where a mesoscopic Josephson junction (JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (in≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.

AB - We study a circuit where a mesoscopic Josephson junction (JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (in≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.

KW - Josephson junction

U2 - 10.1063/1.1751231

DO - 10.1063/1.1751231

M3 - Article

SN - 0021-8979

VL - 95

SP - 8059

EP - 8062

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 12

ER -

Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling

Abstract

Keywords

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