Spatial distribution of the incompressible strips at AB interferometer
Küçük Resim Yok
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this work, the edge physics of an Aharonov-Bohm interferometer (ABI) defined on a two dimensional electron gas, subject to strong perpendicular magnetic field B, is investigated. We solve the three dimensional Poisson equation using numerical techniques starting from the crystal growth parameters and surface image of the sample. The potential profiles of etched and gate defined geometries are compared and it is found that the etching yields a steeper landscape. The spatial distribution of the incompressible strips is investigated as a function of the gate voltage and applied magnetic field, where the imposed current is confined to. AB interference is investigated due to scattering processes between two incompressible edge-states. (C) 2009 Elsevier B.V. All rights reserved.
Açıklama
18th International Conference on Electronic Properties of Two-Dimensional Systems -- JUL 19-24, 2009 -- Kobe, JAPAN
Anahtar Kelimeler
Aharonov-Bohm Interferometer, Quantum Dots, Screening, Double-Slit Experiments, Phase Lapses, Electrostatics
Kaynak
Physica E-Low-Dimensional Systems & Nanostructures
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
42
Sayı
4
