Coherent flow of electrons through quantum point contact
The coherent flow of electrons through a quantum point contact, formed in a 2-D electron gas located inside a GaAs/AlGaAs heterostructure. The scanned probe microscope images on the outside agree with the theoretical simulations inside. The fringes are spaced by half the electron wavelength.
This work was supported by a National Science Foundation grant.
Credit: Dr. Robert Westervelt and Dr. Eric Heller, Harvard University; Dr. Arthur Gossard, University of California, Santa Barbara
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