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Antilocalization of Coulomb Blockade in a Ge-Si Nanowire

Publikation: Forskning - fagfællebedømtTidsskriftartikel

Dokumenter

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

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 ($l_{so}$
OriginalsprogEngelsk
Artikelnummer216806
TidsskriftPhysical Review Letters
Vol/bind112
ISSN0031-9007
StatusUdgivet - 29 maj 2014

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