Charge redistribution spectroscopy as a probe of spin phenomena in quantum dots

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DOIResolve DOI: http://doi.org/10.1063/1.1994590
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TypeArticle
Proceedings titlePHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors - ICPS-27
Series titleAIP Conference Proceedings; no. 772
ConferencePHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27, 26 July 2004 through 30 July 2004, Flagstaff, AZ
ISSN0094-243X
1551-7616
ISBN0735402574
9780735402577
Pages13031306; # of pages: 4
AbstractTwo transport techniques are described for performing charge redistribution spectroscopy at a fixed electron number. In the first method we simply apply the well established 'Cambridge' QPC charge detector technique to a dot with no leads to external reservoirs. In the second technique we use two dots in series in the regime where the electrochemical potential of only one of the dots is aligned with the external leads. In this case the transport involves co-tunneling processes through the second dot. Charge rearrangements occurring in one dot are picked up through shifts in the electrochemical potential of the other. We perform proof of concept demonstrations using well characterised transitions in the vicinity of filling factor 2 to confirm that both techniques can be used for charge redistribution spectroscopy. We discuss why such spectroscopy can provide new information about complex many-body spin phenomena in quantum dots. © 2005 American Institute of Physics.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21274628
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Record identifiere96b3e15-9156-485c-9305-bd3b725f1f62
Record created2015-03-18
Record modified2016-05-09
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