Adjustable atomic size contacts realized by break junctions have become a standard tool during the last decade. Although nanofabricated break junctions may in principle be incorporated onto complex electronic circuits, a fundamental drawback of the standard break junction technique is its limitation to a single adjustable junction per device. We have fabricated single break junctions as well as devices containing two break junctions on a silicon membrane. The junctions are adjusted by positioning a fine tip via piezocontrol on the rear side of the membrane. We describe the fabrication process of the membranes and the devices and present results obtained on circuits made of gold and platinum. We show that the junctions can be addressed independently by a suitable choice of the tip position. Single-atom contacts, vacuum tunneling contacts as well as larger contacts can be stabilized.
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September 2008
Research Article|
September 08 2008
Nanofabricated adjustable multicontact devices on membranes
Reimar Waitz;
Reimar Waitz
1Department of Physics,
University of Konstanz
, D-78457 Konstanz, Germany
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Olivier Schecker;
Olivier Schecker
1Department of Physics,
University of Konstanz
, D-78457 Konstanz, Germany
2
IMEP-LAHC
, MINATEC-INPG, F-38016 Grenoble, France
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Elke Scheer
Elke Scheer
1Department of Physics,
University of Konstanz
, D-78457 Konstanz, Germany
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Rev. Sci. Instrum. 79, 093901 (2008)
Article history
Received:
June 02 2008
Accepted:
July 25 2008
Citation
Reimar Waitz, Olivier Schecker, Elke Scheer; Nanofabricated adjustable multicontact devices on membranes. Rev. Sci. Instrum. 1 September 2008; 79 (9): 093901. https://doi.org/10.1063/1.2972148
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