2017
DOI: 10.1088/1361-6528/aa5261
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Quantum state readout of individual quantum dots by electrostatic force detection

Abstract: Electric charge detection by atomic force microscopy (AFM) with single-electron resolution (e-EFM) is a promising way to investigate the electronic level structure of individual quantum dots (QDs). The oscillating AFM tip modulates the energy of the QDs, causing single electrons to tunnel between QDs and an electrode. The resulting oscillating electrostatic force changes the resonant frequency and damping of the AFM cantilever, enabling electrometry with a single-electron sensitivity. Quantitative electronic l… Show more

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Cited by 28 publications
(33 citation statements)
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References 87 publications
(150 reference statements)
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“…This dependence of cantilever damping on the charging rate agrees with previous results. For example, Miyahara et al present the same dependence derived in the context of cantilever-induced single-electron tunneling [69].…”
Section: A Current-induced Cantilever Dissipationmentioning
confidence: 66%
“…This dependence of cantilever damping on the charging rate agrees with previous results. For example, Miyahara et al present the same dependence derived in the context of cantilever-induced single-electron tunneling [69].…”
Section: A Current-induced Cantilever Dissipationmentioning
confidence: 66%
“…Füre ine Beschreibung des Arbeitsprinzips und allgemeiner Anwendungen des KPFM verweisen wir den Leser auf die neuesten Übersichtsartikel. [93][94][95][96][97] Ein wichtiger Punkt ist, dass das KPFM fürE inzelmoleküle Informationen über den Ladungszustand individueller Atome [98,99] und Moleküle liefern kann. [100,101] Sogar Informationen, die auf die Ladungsverteilung innerhalb eines Moleküls rückschließen lassen, kann man mit Subelektronen-Auflçsung gewinnen.…”
Section: Angewandte Chemieunclassified
“…within the scope of such dissipation sensitive techniques as atomic force microscopy (AFM) at low temperatures. [88][89][90][91][92] The relevant quantity hereby would be the damping of the AFM cantilever oscillations directly linked to the magnetic-state-transition induced dissipation in the system.…”
Section: Vacancy Clustersmentioning
confidence: 99%