| Author | Search for: Livadaru, L.1; Search for: Pitters, J. L.1; Search for: Taucer, M.1; Search for: Wolkow, R. A.1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Conference | Nanotech Conference and Expo 2012, June 18-21, 2012, Santa Clara, CA, USA |
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| Subject | Artificial molecule; Atomic scale; Building blockes; Charge dynamics; Charge qubits; Computing architecture; Device architectures; Electron dynamics; External control; Ionic state; Nanoscale device; Polarization properties; Quantum-dot cellular automata; Si(001) surfaces; Silicon dangling bonds; Silicon surfaces; Dynamics; Electronic structure; Fluidics; Molecules; Nanowires; Scanning tunneling microscopy; Sequential machines; Nanotechnology |
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| Abstract | A dangling bond (DB) on a silicon surface atomic has been found to behave as an atomic-scale quantum dot. This opens up the possibility of using DBs as building blocks for novel electronic structures, pushing the ultimate limits of nanoscale devices. Examples include: artificial molecules, nanowires, and alternate computing architectures such as the Quantum-Dot Cellular Automata (QCA). We study theoretically various aspects of DB structures on an H-terminated 2x1 Si(001) surface, which are of primary interest for the advancement of any device architecture: (i) The "diatomic" artificial DB molecule, composed of two tunnel-coupled DBs; its coherence and polarization properties in different ionic states; its potential as a charge qubit. (ii) The interaction of such DB structures with external control electrodes and manipulators, including the interaction with a scanning tunneling microscopy (STM) probe. |
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| Publication date | 2012 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270288 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | e06a1785-d537-45cf-8018-bb881700683b |
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| Record created | 2014-01-20 |
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| Record modified | 2020-04-21 |
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