Charge sensing of an artificial H2+ molecule in lateral quantum dots

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.72.125307
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TypeArticle
Journal titlePhysical review. B, Condensed matter and materials physics
Volume72
Issue12
Pages125307
AbstractWe report charge detection studies of a lateral double quantum dot with controllable charge states and tunable tunnel coupling. Using an integrated electrometer, we characterize the equilibrium state of a single electron trapped in the double-dot (artificial H+2 molecule) by measuring the average occupation of one dot. We present a model where the electrostatic coupling between the molecule and the sensor is taken into account explicitly. From the measurements, we extract the temperature of the isolated electron and the tunnel coupling energy. It is found that this coupling can be tuned between 0 and 60μeV in our device.
Publication date
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12744435
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Record identifier16cd4b19-218b-481f-8ad0-8ba1f7c6ae02
Record created2009-10-27
Record modified2016-05-09
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