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

Juha Hassel, Heikki Seppä, Julien Delahaye, Pertti Hakonen

Research output: Contribution to journalArticleScientificpeer-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 (in≲1 fA/√Hz) and noise temperature (≲0.1 K) can be achieved. Good agreement between our numerical simulations and experimental results is obtained.
Original languageEnglish
Pages (from-to)8059 - 8062
Number of pages4
JournalJournal of Applied Physics
Volume95
Issue number12
DOIs
Publication statusPublished - 2004
MoE publication typeA1 Journal article-refereed

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electron tunneling
Josephson junctions
insulators
noise temperature
low currents
resistors
transistors
simulation

Keywords

  • Josephson junction

Cite this

Hassel, Juha ; Seppä, Heikki ; Delahaye, Julien ; Hakonen, Pertti. / Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling. In: Journal of Applied Physics. 2004 ; Vol. 95, No. 12. pp. 8059 - 8062.
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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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Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling. / Hassel, Juha; Seppä, Heikki; Delahaye, Julien; Hakonen, Pertti.

In: Journal of Applied Physics, Vol. 95, No. 12, 2004, p. 8059 - 8062.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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

VL - 95

SP - 8059

EP - 8062

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 12

ER -