The charged tip of a scanning tunneling microscope and an additional magnetic field lead to localized stable electron states in graphene. Credit: Nils Freitag, RWTH Aachen
Scientists have created tiny quantum dots in graphene. In a tiny quantum prison, electrons behave quite differently as compared to their counterparts in free space. They can only occupy discrete energy levels, much like the electrons in an atom – for this reason, such electron prisons are often called “artificial atoms.” Artificial atoms may also feature properties beyond those of conventional ones, with the potential for many applications eg quantum computing. Such additional properties have now been shown for artificial atoms in graphene.
“Artificial atoms open up new, exciting possibilities, because we can directly tu...
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