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Statistics of the Coulomb-blockade peak spacings of a silicon quantum dot

Statistics of the Coulomb-blockade peak spacings of a silicon quantum dot

We present an experimental study of the fluctuations of Coulomb-blockade peak positions of a quantum dot. The dot is defined by patterning the two-dimensional electron gas of a silicon metal-oxide-semiconductor field-effect transistor structure using stacked gates. This permits variation of the number of electrons on the quantum dot without significant …