Addition spectrum of a lateral dot from Coulomb and spin-blockade spectroscopy

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.61.R16315
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TypeArticle
Journal titlePhysical review. B, Condensed matter and materials physics
Volume61
Issue24
PagesR16315R16318
AbstractTransport measurements are presented on a class of electrostatically defined lateral dots within a high mobility two-dimensional electron gas (2DEG). The design allows Coulomb blockade (CB) measurements to be performed on a single lateral dot containing 0, 1 to over 50 electrons. The CB measurements are enhanced by the spin polarized injection from and into 2DEG magnetic edge states. This combines the measurement of charge with the measurement of spin through spin-blockade spectroscopy. The results of Coulomb and spin-blockade spectroscopy for the first 45 electrons enable us to construct the addition spectrum of a lateral device. We also demonstrate that a lateral dot containing a single electron is an effective local probe of a 2DEG edge.
Publication date
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12744556
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Record identifier45231540-9998-41d7-b3c8-d18e68d00e46
Record created2009-10-27
Record modified2016-05-09
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