Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots

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Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots. / Grove-Rasmussen, Kasper; Grap, S.; Paaske, Jens; Flensberg, Karsten; Andergassen, Sabine; Meden, Volker; Jørgensen, Henrik Ingerslev; Muraki, K.; Fujisawa, T.

In: Physical Review Letters, Vol. 108, No. 17, 26.04.2012, p. 176802.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Grove-Rasmussen, K, Grap, S, Paaske, J, Flensberg, K, Andergassen, S, Meden, V, Jørgensen, HI, Muraki, K & Fujisawa, T 2012, 'Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots', Physical Review Letters, vol. 108, no. 17, pp. 176802. https://doi.org/10.1103/PhysRevLett.108.176802

APA

Grove-Rasmussen, K., Grap, S., Paaske, J., Flensberg, K., Andergassen, S., Meden, V., Jørgensen, H. I., Muraki, K., & Fujisawa, T. (2012). Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots. Physical Review Letters, 108(17), 176802. https://doi.org/10.1103/PhysRevLett.108.176802

Vancouver

Grove-Rasmussen K, Grap S, Paaske J, Flensberg K, Andergassen S, Meden V et al. Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots. Physical Review Letters. 2012 Apr 26;108(17):176802. https://doi.org/10.1103/PhysRevLett.108.176802

Author

Grove-Rasmussen, Kasper ; Grap, S. ; Paaske, Jens ; Flensberg, Karsten ; Andergassen, Sabine ; Meden, Volker ; Jørgensen, Henrik Ingerslev ; Muraki, K. ; Fujisawa, T. / Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots. In: Physical Review Letters. 2012 ; Vol. 108, No. 17. pp. 176802.

Bibtex

@article{dae61daedfc14e819234fdc04d184594,
title = "Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots",
abstract = "By means of sequential and cotunneling spectroscopy, we study the tunnel couplings between metallic leads and individual levels in a carbon nanotube quantum dot. The levels are ordered in shells consisting of two doublets with strong- and weak-tunnel couplings, leading to gate-dependent level renormalization. By comparison to a one- and two-shell model, this is shown to be a consequence of disorder-induced valley mixing in the nanotube. Moreover, a parallel magnetic field is shown to reduce this mixing and thus suppress the effects of tunnel renormalization.",
author = "Kasper Grove-Rasmussen and S. Grap and Jens Paaske and Karsten Flensberg and Sabine Andergassen and Volker Meden and J{\o}rgensen, {Henrik Ingerslev} and K. Muraki and T. Fujisawa",
year = "2012",
month = apr,
day = "26",
doi = "10.1103/PhysRevLett.108.176802",
language = "English",
volume = "108",
pages = "176802",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "17",

}

RIS

TY - JOUR

T1 - Magnetic-Field Dependence of Tunnel Couplings in Carbon Nanotube Quantum Dots

AU - Grove-Rasmussen, Kasper

AU - Grap, S.

AU - Paaske, Jens

AU - Flensberg, Karsten

AU - Andergassen, Sabine

AU - Meden, Volker

AU - Jørgensen, Henrik Ingerslev

AU - Muraki, K.

AU - Fujisawa, T.

PY - 2012/4/26

Y1 - 2012/4/26

N2 - By means of sequential and cotunneling spectroscopy, we study the tunnel couplings between metallic leads and individual levels in a carbon nanotube quantum dot. The levels are ordered in shells consisting of two doublets with strong- and weak-tunnel couplings, leading to gate-dependent level renormalization. By comparison to a one- and two-shell model, this is shown to be a consequence of disorder-induced valley mixing in the nanotube. Moreover, a parallel magnetic field is shown to reduce this mixing and thus suppress the effects of tunnel renormalization.

AB - By means of sequential and cotunneling spectroscopy, we study the tunnel couplings between metallic leads and individual levels in a carbon nanotube quantum dot. The levels are ordered in shells consisting of two doublets with strong- and weak-tunnel couplings, leading to gate-dependent level renormalization. By comparison to a one- and two-shell model, this is shown to be a consequence of disorder-induced valley mixing in the nanotube. Moreover, a parallel magnetic field is shown to reduce this mixing and thus suppress the effects of tunnel renormalization.

U2 - 10.1103/PhysRevLett.108.176802

DO - 10.1103/PhysRevLett.108.176802

M3 - Journal article

VL - 108

SP - 176802

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 17

ER -

ID: 41030017