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A pioneering team from IBM in Zurich has published single-molecule images so detailed that the type of atomic bonds between their atoms can be discerned.
The same team took the first-ever single-molecule image in 2009 and more recently published images of a molecule shaped like the Olympic rings.
The new work opens up the prospect of studying imperfections in the "wonder material" graphene or plotting where electrons go during chemical reactions.
It says:
Originally posted by DJOldskool
It does not look like they are using visible light to do it?
That makes me wonder how they made the tip small enough. After all, they are scanning atoms, and the tip itself has to be made of atoms also, so the structure and size of this tip isn't entirely clear to me after reading the article.
The team, which included French and Spanish collaborators, used a variant of a technique called atomic force microscopy, or AFM.
AFM uses a tiny metal tip passed over a surface, whose even tinier deflections are measured as the tip is scanned to and fro over a sample.
Originally posted by Arbitrageur
It says:
Originally posted by DJOldskool
It does not look like they are using visible light to do it?
That makes me wonder how they made the tip small enough. After all, they are scanning atoms, and the tip itself has to be made of atoms also, so the structure and size of this tip isn't entirely clear to me after reading the article.
The team, which included French and Spanish collaborators, used a variant of a technique called atomic force microscopy, or AFM.
AFM uses a tiny metal tip passed over a surface, whose even tinier deflections are measured as the tip is scanned to and fro over a sample.
Nice find, it's pretty amazing!
Bond Order Discrimination (animation)
Animation showing the last cooper atom of the tip of the Atomic Force Microscope (top) where a carbon-monoxide molecule are terminated. The carbon atoms are blue and the oxygen atom is red. This tip oscillates with a tiny amplitude above the C60, known as a buckyball, and the forces are measured between of the two molecules, to create an image. The carbon-monoxide termination of the tip acts as a powerful magnifying glass to reveal the atomic structure of the molecule, including its bonds.