Antilocalization of Coulomb Blockade in a Ge-Si Nanowire

Andrew P.  Higginbotham; Ferdinand Kuemmeth; Thorvald Wadum Larsen; M. Fitzpatrick; Jianlong Yao; H. Yan; C. M. Lieber; Charles M. Marcus

Antilocalization of Coulomb Blockade in a Ge-Si Nanowire

Andrew P. Higginbotham, Ferdinand Kuemmeth, Thorvald Wadum Larsen, M. Fitzpatrick, Jianlong Yao, H. Yan, C. M. Lieber, Charles M. Marcus

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Abstract

The distribution of Coulomb blockade peak heights as a function of magnetic field is investigated experimentally in a Ge-Si nanowire quantum dot. Strong spin-orbit coupling in this hole-gas system leads to antilocalization of Coulomb blockade peaks, consistent with theory. In particular, the peak height distribution has its maximum away from zero at zero magnetic field, with an average that decreases with increasing field. Magnetoconductance in the open-wire regime places a bound on the spin-orbit length ($l_{so}$

Originalsprog	Engelsk
Artikelnummer	216806
Tidsskrift	Physical Review Letters
Vol/bind	112
ISSN	0031-9007
Status	Udgivet - 29 maj 2014

Bibliografisk note

preprint available at http://arxiv.org/abs/1401.2948

Adgang til dokumentet

PhysRevLett 112 216806 2014Forlagets udgivne version, 393 KB

http://dx.doi.org/10.1103/PhysRevLett.112.216806

Citationsformater

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abstract = "The distribution of Coulomb blockade peak heights as a function of magnetic field is investigated experimentally in a Ge-Si nanowire quantum dot. Strong spin-orbit coupling in this hole-gas system leads to antilocalization of Coulomb blockade peaks, consistent with theory. In particular, the peak height distribution has its maximum away from zero at zero magnetic field, with an average that decreases with increasing field. Magnetoconductance in the open-wire regime places a bound on the spin-orbit length ($l_{so}$",

keywords = "cond-mat.mes-hall",

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T1 - Antilocalization of Coulomb Blockade in a Ge-Si Nanowire

AU - Higginbotham, Andrew P.

AU - Kuemmeth, Ferdinand

AU - Larsen, Thorvald Wadum

AU - Fitzpatrick, M.

AU - Yao, Jianlong

AU - Yan, H.

AU - M. Lieber, C.

AU - Marcus, Charles M.

N1 - preprint available at http://arxiv.org/abs/1401.2948

PY - 2014/5/29

Y1 - 2014/5/29

N2 - The distribution of Coulomb blockade peak heights as a function of magnetic field is investigated experimentally in a Ge-Si nanowire quantum dot. Strong spin-orbit coupling in this hole-gas system leads to antilocalization of Coulomb blockade peaks, consistent with theory. In particular, the peak height distribution has its maximum away from zero at zero magnetic field, with an average that decreases with increasing field. Magnetoconductance in the open-wire regime places a bound on the spin-orbit length ($l_{so}$

AB - The distribution of Coulomb blockade peak heights as a function of magnetic field is investigated experimentally in a Ge-Si nanowire quantum dot. Strong spin-orbit coupling in this hole-gas system leads to antilocalization of Coulomb blockade peaks, consistent with theory. In particular, the peak height distribution has its maximum away from zero at zero magnetic field, with an average that decreases with increasing field. Magnetoconductance in the open-wire regime places a bound on the spin-orbit length ($l_{so}$

KW - cond-mat.mes-hall

M3 - Journal article

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 216806

ER -