Magneto-tunnelling spectroscopy of a quantum dot charged with a few electrons

Alain Nogaret, MJ Gompertz, pc main, L Eaves, TJ Foster, M Henini, sp beaumont

Research output: Contribution to journalArticle

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Abstract

We have measured the tunnelling current through a two-dimensional quantum dot formed at the intersection between two wires. Near the onset, the current-voltage curves display a step-like current structure characteristic of incremental charging of the quantum well controlled by Coulomb blockade. Using a magnetic field, we probe the energy levels within the dot when charged with either one or two electrons. These results are compared to the Darwin-Fock calculation for a parabolic quantum dot.
Original languageEnglish
Pages (from-to)644-647
Number of pages4
JournalSurface Science
Volume361 - 362
DOIs
Publication statusPublished - 20 Jul 1996

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Semiconductor quantum dots
quantum dots
Spectroscopy
Coulomb blockade
Electrons
Electron energy levels
Semiconductor quantum wells
spectroscopy
electrons
Wire
Magnetic fields
intersections
charging
Electric potential
energy levels
quantum wells
wire
probes
electric potential
curves

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Nogaret, A., Gompertz, MJ., main, P., Eaves, L., Foster, TJ., Henini, M., & beaumont, S. (1996). Magneto-tunnelling spectroscopy of a quantum dot charged with a few electrons. Surface Science, 361 - 362, 644-647. https://doi.org/10.1016/0039-6028(96)00490-6

Magneto-tunnelling spectroscopy of a quantum dot charged with a few electrons. / Nogaret, Alain; Gompertz, MJ; main, pc; Eaves, L; Foster, TJ; Henini, M; beaumont, sp.

In: Surface Science, Vol. 361 - 362, 20.07.1996, p. 644-647.

Research output: Contribution to journalArticle

Nogaret, A, Gompertz, MJ, main, P, Eaves, L, Foster, TJ, Henini, M & beaumont, S 1996, 'Magneto-tunnelling spectroscopy of a quantum dot charged with a few electrons', Surface Science, vol. 361 - 362, pp. 644-647. https://doi.org/10.1016/0039-6028(96)00490-6
Nogaret, Alain ; Gompertz, MJ ; main, pc ; Eaves, L ; Foster, TJ ; Henini, M ; beaumont, sp. / Magneto-tunnelling spectroscopy of a quantum dot charged with a few electrons. In: Surface Science. 1996 ; Vol. 361 - 362. pp. 644-647.
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