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Mesoscopic Coulomb Blockade in One-channel Quantum Dots

S. M. Cronenwett·S. M. Maurer·S. R. Patel·C. M. Marcus·C. I. Duruoz·J. S. Harris
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Abstract

Signatures of "mesoscopic Coulomb blockade" are reported for quantum dots with one fully transmitting point-contact lead, T1 = 1, T2 << 1. Unlike Coulomb blockade (CB) in weak-tunneling devices (T1, T2 << 1), one-channel CB is a mesoscopic effect requiring quantum coherence. Several distinctive features of mesoscopic CB are observed, including a reduction in CB upon breaking time-reversal symmetry with a magnetic field, relatively large fluctuations of peak position as a function of magnetic field, and strong temperature dependence on the scale of the quantum level spacing.

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S. M. Cronenwett, S. M. Maurer, S. R. Patel, C. M. Marcus, C. I. Duruoz, J. S. Harris. 1998-07-22. Mesoscopic Coulomb Blockade in One-channel Quantum Dots. https://doi.org/10.1103/physrevlett.81.5904

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