[Paradox]

Then, to improve the resolution of the STM and make it sensitive to the phase of the molecule's orbital, the researchers stuck a single carbon monoxide molecule on the metal STM tip. Carbon monoxide has a simple but distinctive outermost orbital structure with two side-by-side lobes sticking out from the end of the tip, one with a positive phase and the other a negative phase.

Thats freakin brilliant. Amazing images.

[SunkenCiv]

Thanks Paradox.