Electrostatic theory of irregular conductance oscillations through a quantum constriction under Hall conditions

Basit Öğe Kaydı
dc.authorid0000-0001-5045-0358en_US
dc.contributor.authorSıddıki, Afif
dc.date.accessioned2024-07-12T21:41:01Z
dc.date.available2024-07-12T21:41:01Z
dc.date.issued2020en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractWe propose a semi-classical explanation to the conductance oscillations () observed at gate-controlled quantum dots under quantized Hall conditions. Our approach is based on the self-consistent screening theory of the quantum Hall effect and originates either from the interference of electrons or from charging effects. In the interference regime electrons acquire an Aharonov–Bohm phase while propagating coherently along the evanescent incompressible stripes at a particular filling factor, where the stripes enclose a magnetic flux. The charging regime finds its ground in Coulomb blocked, where the transport electron generates an additional energy scale to conductance oscillations. Combining these two regimes, we found that the period of conductance oscillations in magnetic field () may increase, decrease or remain constant at different filling factors, as observed in the experiments. In addition it is shown that, a gate potential can shift the incompressible stripe along the gated edge spatially, thereby changing the enclosed flux, and can induce with a period . We demonstrate that our formulation is able to generate the superimposed - interferences in stripe or checkerboard patterns in agreement with experiments. We can account for further salient and peculiar features of experimental observations for example the surprising absence of oscillations at certain filling factors.en_US
dc.identifier.citationSıddıki, A. (2020). Electrostatic theory of irregular conductance oscillations through a quantum constriction under Hall conditions. Physica E: Low-dimensional Systems and Nanostructures, Elsevier. 122.en_US
dc.identifier.doi10.1016/j.physe.2020.114145
dc.identifier.issn1873-1759
dc.identifier.scopus2-s2.0-85084114955en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1386947720301934
dc.identifier.urihttps://doi.prg/10.1016/j.physe.2020.114145
dc.identifier.urihttps://hdl.handle.net/20.500.12415/7563
dc.identifier.volume122en_US
dc.identifier.wosWOS:000539934000010en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorSıddıki, Afif
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysica E: Low-dimensional Systems and Nanostructuresen_US
dc.relation.publicationcategoryUluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanıen_US
dc.rightsCC0 1.0 Universal*
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.snmzKY03239
dc.titleElectrostatic theory of irregular conductance oscillations through a quantum constriction under Hall conditionsen_US
dc.typeArticle
dspace.entity.typePublication

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu