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

Condensed Matter Physics

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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 ($l_{so}$

Original language	English
Article number	216806
Journal	Physical Review Letters
Volume	112
ISSN	0031-9007
Publication status	Published - 29 May 2014

Bibliographical note

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

Keywords

cond-mat.mes-hall

Access to Document

PhysRevLett 112 216806 2014Final published version, 393 KB

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

Cite this

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title = "Antilocalization of Coulomb Blockade in a Ge-Si Nanowire",

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",

author = "Higginbotham, {Andrew P.} and Ferdinand Kuemmeth and Larsen, {Thorvald Wadum} and M. Fitzpatrick and Jianlong Yao and H. Yan and {M. Lieber}, C. and Marcus, {Charles M.}",

note = "preprint available at http://arxiv.org/abs/1401.2948",

year = "2014",

month = may,

day = "29",

language = "English",

volume = "112",

journal = "Physical Review Letters",

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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

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - 216806

ER -