Smile! Say 'Benzene Ring'

A Better Picture of Molecules

In this type of [scanning tunneling microscope], a single hydrogen or deuterium molecule is attached to the probe tip, and the team showed that the pressure of this molecule against the probe leads to the dramatic improvement in imaging. The technique images the effect of a force on electrical conduction through the probe, which allows a more complete picture of the molecule’s electrons than standard STM provides.