A microfabricated gold ring for Aharonov-Bohm type experiments, which test the modulation of quantum-interference contributions of electrons due to the presence of a magnetic field. Dimensions are: 70 nm wide, 20 nm thick with a diameter of about 800 nm.
Source: Christian Schönenberger
Original post by Ryan Munden at http://www.nanopicoftheday.org/
