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News Release 10-096
Stretching Molecules Yields New Understanding of Electricity
Finding presents a powerful new tool for nanoscale science experiments
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![Illlustration showing device used to stretch a molecule while measuring its electric current.](/news/mmg/media/images/kondo_effect1_f.jpg)
Schematic of the mechanically controllable device used for stretching individual molecules while simultaneously measuring the electron current through the molecule.
Credit: Joshua Parks, Cornell University
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![Micrograph of a gold bridge used to stretch a molecule and measure electricity flowing through it.](/news/mmg/media/images/kondo_effect2_f.jpg)
A scanning electron micrograph of a gold bridge suspended 40 nanometers above a silicon substrate. In the experiment, the bridge is severed in the middle, a single high-spin molecule is suspended across the gap, and the substrate is bent to stretch the molecule while simultaneously measuring the electron current through the molecule.
Credit: Joshua Parks, Cornell University
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![Cover of the June 11, 2010, issue of the journal Science.](/news/mmg/media/images/science_061110_f.jpg)
The research results appear in the June 11, 2010, issue of the journal Science.
Credit: Copyright AAAS 2010
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