Quantized conductance atomic switch

K. Terabe, T. Hasegawa (), T. Nakayama and M. Aono
Additional contact information
K. Terabe: National Institute for Materials Science
T. Hasegawa: National Institute for Materials Science
T. Nakayama: National Institute for Materials Science
M. Aono: National Institute for Materials Science

Nature, 2005, vol. 433, issue 7021, 47-50

Abstract: Nanoelectronics switched on A new atomic-scale electromechanical switch has properties that may make it suitable as an element in future nanoelectronic devices. The switch is made by simply crossing a silver sulphide wire and a platinum wire with a 1-nm spacing. When a sufficiently strong voltage pulse is applied, silver atoms from the silver sulphide are electrically introduced into the gap, forming an atomic bridge between the wires; the resulting structure exhibits quantized conduction. The formation process is reversible and the atomic bridge can be annihilated with a second voltage pulse. The ‘crossbar’ structure is convenient for integrating the switch into devices, opening the way for the fabrication of logic circuits using these switches as sole components.

Date: 2005
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DOI: 10.1038/nature03190

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