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

被引：363

作者：

Ciorga, M ^{[1
]}

Sachrajda, AS

Hawrylak, P

Gould, C

Zawadzki, P

Jullian, S

Feng, Y

Wasilewski, Z

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

[2] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada

[3] Univ Sherbrooke, CRPS, Sherbrooke, PQ J1K 2R1, Canada

[4] MPI, FKF, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France

[5] CNRS 25, F-38042 Grenoble 9, France

[6] Wroclaw Univ Technol, Inst Phys, PL-50370 Wroclaw, Poland

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.61.R16315

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：16315 / 16318

页数：4

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