Spin-engineered quantum dots

Details Spin-engineered quantum dots Spin-engineered quantum dots

2001-09-14

arxiv.org/abs/cond-mat/0109271v1

Physica E (2002), 14, 361-365

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 1 figure, submitted to Physica E, Augist 31, 2001

Scientific paper

Spatially nonhomogeneously spin polarized nuclei are proposed as a new mechanism to monitor electron states in a nanostructure, or as a means to createn and, if necessary, reshape such nanostructures in the course of the experiment. We found that a polarization of nulear spins may lift the spin polarization of the electron states in a nanostructure and, if sufficiently strong, leads to a polarization of the electron spins. Polarized nuclear spins may form an energy landscape capable of binding electrons with energy up to several meV and the localization radius $ >$ 100\AA.

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