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

1999/12/31 by M. Ciorga, A. S. Sachrajda, P. Hawrylak +8 · 19 citations
Engineering · Materials Science · Physics and Astronomy · #Electronic and Structural Properties of Oxides #Quantum and electron transport phenomena #Semiconductor materials and devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.61.r16315

4 pages, 4 figures submitted to Physical Review B

arxiv created 2000/04/19 · openalex publication_date 2000/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Transport 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.

Citations

• The Diamagnetism of the Free Electron

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