Power spectra and auto correlation analysis of hyperfine-induced long period oscillations in the tunneling current of coupled quantum dots

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DOIResolve DOI: http://doi.org/10.1063/1.4848373
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TypeArticle
Proceedings titleThe Physics of Semiconductors: Proceedings of the 31st International Conference on the Physics of Semiconductors (ICPS)
Series titleAIP Conference Proceedings; no. 1566
Conference31st International Conference on the Physics of Semiconductors (ICPS), July 29-Aug 3 2012, Zurich, Switzerland
ISSN0094-243X
ISBN9780735411944
Pages237238
SubjectQuantum dots; Tunneling; Magnetic fields; Spectrum analysis; Magnetic hysteresis
AbstractWe outline power spectra and auto correlation analysis performed on temporal oscillations in the tunneling current of coupled vertical quantum dots. The current is monitored for ∼2325 s blocks as the magnetic field is stepped through a high bias feature displaying hysteresis and switching: hallmarks of the hyperfine interaction. Quasi-periodic oscillations of ∼2 pA amplitude and of ∼100 s period are observed in the current inside the hysteretic feature. Compared to the baseline current outside the hysteretic feature the power spectral density is enhanced by up to three orders of magnitude and the auto correlation displays clear long lived oscillations about zero.
Publication date
PublisherAmerican Institute of Physics Inc.
LanguageEnglish
AffiliationAerospace; Information and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23000589
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Record identifier2ef53086-afc4-4779-8b1c-493c33985f85
Record created2016-08-04
Record modified2016-08-04
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