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Few-electron quantum dot fabricated with layered scanning force microscope lithography
Sigrist, Martin, Gustavsson, S., Ihn, Thomas, Ensslin, Klaus, Driscoll, D., Gossard, A. C., Reinwald, Matthias und Wegscheider, Werner (2006) Few-electron quantum dot fabricated with layered scanning force microscope lithography. Physica E Low-dimensional Systems and Nanostructures 32 (1-2), S. 5-8.Veröffentlichungsdatum dieses Volltextes: 25 Jan 2010 13:12
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.12185
Zusammenfassung
Few-electron quantum dots with integrated charge read-out have been fabricated by layered local anodic oxidation of a Ga[Al]As heterostructure and a thin Titanium top gate. The additional set of gates provided by the metallic film is used to tune the quantum dots into the few-electron regime. Current through the quantum dots and the quantum dot charge have been simultaneously measured for ...
Few-electron quantum dots with integrated charge read-out have been fabricated by layered local anodic oxidation of a Ga[Al]As heterostructure and a thin Titanium top gate. The additional set of gates provided by the metallic film is used to tune the quantum dots into the few-electron regime. Current through the quantum dots and the quantum dot charge have been simultaneously measured for electron numbers varying between zero and two. The singlet–triplet splitting varies in two different samples between 0.5 and 1.5 meV. The Zeeman splitting of the first conductance resonance is observed in parallel magnetic field. The high tunability and straightforward implementation of these structures are promising for future nanostructure design.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Physica E Low-dimensional Systems and Nanostructures | ||||
| Verlag: | Elsevier | ||||
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| Band: | 32 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 1-2 | ||||
| Seitenbereich: | S. 5-8 | ||||
| Datum | Mai 2006 | ||||
| Institutionen | Physik > Institut für Experimentelle und Angewandte Physik > Entpflichtete oder im Ruhestand befindliche Professoren > Arbeitsgruppe Werner Wegscheider | ||||
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| Stichwörter / Keywords | Few-electron quantum dot; Layered lithography; Scanning force microscope | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Unbekannt / Keine Angabe | ||||
| An der Universität Regensburg entstanden | Unbekannt / Keine Angabe | ||||
| Dokumenten-ID | 12185 |
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