Imaging a single-electron quantum dot.

Parisa Fallahi; Ania C Bleszynski; Robert M Westervelt; Jian Huang; Jamie D Walls; Eric J Heller; Micah Hanson; Arthur C Gossard

doi:10.1021/nl048405v

PubMed · 15794600

Imaging a single-electron quantum dot.

Parisa Fallahi·Ania C Bleszynski·Robert M Westervelt·Jian Huang·Jamie D Walls·Eric J Heller·Micah Hanson·Arthur C Gossard

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Abstract

Images of a single-electron quantum dot were obtained in the Coulomb blockade regime at liquid He temperatures using a cooled scanning probe microscope (SPM). The charged SPM tip shifts the lowest energy level in the dot and creates a ring in the image corresponding to a peak in the Coulomb-blockade conductance. Fits to the line shape of the ring determine the tip-induced shift of the energy of the electron state in the dot. SPM manipulation of electrons in quantum dots promises to be useful in understanding, building, and manipulating circuits for quantum information processing.

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Arsenicals Energy Transfer Freezing Gallium Light Materials Testing Microscopy, Scanning Probe Nanotechnology Nanotubes Particle Size Quantum Dots Evaluation Study Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.

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Parisa Fallahi, Ania C Bleszynski, Robert M Westervelt, Jian Huang, Jamie D Walls, Eric J Heller, Micah Hanson, Arthur C Gossard. 2005. Imaging a single-electron quantum dot.. https://doi.org/10.1021/nl048405v

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