Wednesday, June 27, 2007

Simulating David Tomanek's carbon nanotube based memory element.

Here is something that might actually be useful and built in the relatively near future. It is a non-volatile memory element that uses the position of a C60 molecule trapped in a carbon nanotube to represent a binary state. You can read a more complete description and see the original simulations done for it here. The buckyball is given a net charge by trapping a cesium atom inside it and then positioned by applying external electric fields.

At first I was a little worried about how I would cap the tubes, but they turned out pretty good.
I was even able to insert an atom inside the buckyball. The atom is not cesium, but plays the role well.

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