Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo 
current in a weak magnetic field

Schröer, D. M.; Hüttel, A. K.; Eberl, K.; Ludwig, S.; Kiselev, M. N.; Altshuler, B. L.

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Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo current in a weak magnetic field

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Eberl, K.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Schröer, D. M., Hüttel, A. K., Eberl, K., Ludwig, S., Kiselev, M. N., & Altshuler, B. L. (2006). Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo current in a weak magnetic field. Physical Review B, 74(23): 233301.

Cite as: https://hdl.handle.net/21.11116/0000-000E-FB41-E

Abstract

We present transport measurements of the Kondo effect in a double
quantum dot charged with only one or two electrons, respectively. For
the one-electron case, we observe a surprising quasiperiodic
oscillation of the Kondo conductance as a function of a small
perpendicular magnetic field parallel to B-perpendicular to parallel to
less than or similar to 50 mT. We discuss possible explanations of this
effect and interpret it by means of a fine tuning of the energy
mismatch of the single dot levels of the two quantum dots. The observed
degree of control implies important consequences for applications in
quantum information processing.