Nano-ploughed Josephson junctions as on-chip radiation sources

B. Irmer; F. Simmel; R. H. Blick; H. Lorenz; J. P. Kotthaus; M. Bichler; W. Wegscheider

doi:10.1006/spmi.1999.0750

Nano-ploughed Josephson junctions as on-chip radiation sources

B. Irmer
, F. Simmel
, R. H. Blick
, H. Lorenz
, J. P. Kotthaus
, M. Bichler
, W. Wegscheider

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

7 Scopus citations

Abstract

A new technique is presented which enables the fabrication of highly transparent Josephson junctions in combination with mesoscopic devices. We utilize a modified AFM tip to plough grooves into superconducting material, thus defining a weak link. This weak link is made within the superconducting split-gates, which are used to electrostatically form a conventional quantum dot and serves as a source of millimeter wave radiation around 100 GHz. We show the characteristics of typical junctions built and discuss their high-frequency properties. We find that the millimeter wave emission of the weak link leads to a bolometric effect in the case of quantum point contact spectroscopy.

Original language	English
Pages (from-to)	785-795
Number of pages	11
Journal	Superlattices and Microstructures
Volume	25
Issue number	5
DOIs	https://doi.org/10.1006/spmi.1999.0750
State	Published - May 1999
Externally published	Yes

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10.1006/spmi.1999.0750

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abstract = "A new technique is presented which enables the fabrication of highly transparent Josephson junctions in combination with mesoscopic devices. We utilize a modified AFM tip to plough grooves into superconducting material, thus defining a weak link. This weak link is made within the superconducting split-gates, which are used to electrostatically form a conventional quantum dot and serves as a source of millimeter wave radiation around 100 GHz. We show the characteristics of typical junctions built and discuss their high-frequency properties. We find that the millimeter wave emission of the weak link leads to a bolometric effect in the case of quantum point contact spectroscopy.",

author = "B. Irmer and F. Simmel and Blick, \{R. H.\} and H. Lorenz and Kotthaus, \{J. P.\} and M. Bichler and W. Wegscheider",

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T1 - Nano-ploughed Josephson junctions as on-chip radiation sources

AU - Irmer, B.

AU - Simmel, F.

AU - Blick, R. H.

AU - Lorenz, H.

AU - Kotthaus, J. P.

AU - Bichler, M.

AU - Wegscheider, W.

PY - 1999/5

Y1 - 1999/5

N2 - A new technique is presented which enables the fabrication of highly transparent Josephson junctions in combination with mesoscopic devices. We utilize a modified AFM tip to plough grooves into superconducting material, thus defining a weak link. This weak link is made within the superconducting split-gates, which are used to electrostatically form a conventional quantum dot and serves as a source of millimeter wave radiation around 100 GHz. We show the characteristics of typical junctions built and discuss their high-frequency properties. We find that the millimeter wave emission of the weak link leads to a bolometric effect in the case of quantum point contact spectroscopy.

AB - A new technique is presented which enables the fabrication of highly transparent Josephson junctions in combination with mesoscopic devices. We utilize a modified AFM tip to plough grooves into superconducting material, thus defining a weak link. This weak link is made within the superconducting split-gates, which are used to electrostatically form a conventional quantum dot and serves as a source of millimeter wave radiation around 100 GHz. We show the characteristics of typical junctions built and discuss their high-frequency properties. We find that the millimeter wave emission of the weak link leads to a bolometric effect in the case of quantum point contact spectroscopy.

UR - https://www.scopus.com/pages/publications/0032679366

U2 - 10.1006/spmi.1999.0750

DO - 10.1006/spmi.1999.0750

M3 - Article

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EP - 795

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 5

ER -

Nano-ploughed Josephson junctions as on-chip radiation sources

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