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Assembling ferromagnetic single-electron transistors by atomic force microscopy
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Applied Mathematics and Physics (CAMP).
Lund University.
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Applied Mathematics and Physics (CAMP).ORCID iD: 0000-0001-5027-1456
Lund University.
2007 (English)In: Nanotechnology, ISSN 0957-4484, E-ISSN 1361-6528, Vol. 18, no 5, p. 055302-Article in journal (Refereed) Published
Abstract [en]

We demonstrate the assembly of nanoscale ferromagnetic single-electron transistors using atomic force microscopy for imaging as well as for nanoscale manipulation. A single 30 nm Au disc, forming the central island of the transistor, is manipulated with angstrom precision into the gap between a plasma-oxidized Ni source and drain electrodes. The tunnel resistances can be tuned in real time during the device fabrication by repositioning the Au disc. Transport measurements reveal long-term stable single-electron transistor characteristics at 4.2 K. The well-controlled devices with very small central islands facilitate future in-depth studies of the interplay between Coulomb blockade, spin-dependent tunnelling and spin accumulation in ferromagnetic single-electron transistors at elevated temperatures.

Place, publisher, year, edition, pages
Bristol: Institute of Physics (IOP), 2007. Vol. 18, no 5, p. 055302-
Keywords [en]
Atomic force microscopy, Coulomb blockade, Electrodes, Electron tunneling, Ferromagnetic materials, Imaging techniques, Plasmas, Drain electrodes, Plasma-oxidized, Single-electron transistors, Spin-dependent tunnelling, Transistors, Atomic force microscopy, Electrode, Semiconductor, Single electron transistor
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:hh:diva-3467DOI: 10.1088/0957-4484/18/5/055302ISI: 000243854900005Scopus ID: 2-s2.0-33947491239OAI: oai:DiVA.org:hh-3467DiVA, id: diva2:293072
Available from: 2010-02-10 Created: 2009-12-01 Last updated: 2018-04-03Bibliographically approved

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Liu, RuishengPettersson, Håkan

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CiteExportLink to record
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  • apa
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  • de-DE
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