STM scientists strong-arm silicon atoms. (using scanning tunneling microscopes to manipulate silicon atoms)

From: Science News | Date: July 13, 1991| Author: Pennisi, Elizabeth | Copyright information

In the quest to build new materials one atom at a time and to create new machines with nanometer-scale components, scientists use a high-precision tool called the scanning tunneling microscope (STM). Demonstrations of the STM tip's manipulative potential have included words spelled out with xenon atoms and microscopic piles of gold deposited in the shape of the Americas (SN: 11/17/90, p.310).

Now, two physicists have discovered that by adding a bit of electrical and che...

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