February 10, 2018

Read e-book online Architecture and Design of Molecule Logic Gates and Atom PDF

By Stefanos Kaxiras (auth.), Nicolas Lorente, Christian Joachim (eds.)

ISBN-10: 364233136X

ISBN-13: 9783642331367

ISBN-10: 3642331378

ISBN-13: 9783642331374

Have you ever questioned over the right way to practice Boolean good judgment on the atomic scale? Or questioned how one can perform extra common calculations in a single unmarried molecule or utilizing a floor dangling bond atomic scale circuit? This quantity grants an replace at the layout of unmarried molecule units, akin to recitfiers, switches and transistors, extra complex semi-classical and quantum boolean gates built-in in one molecule or built atom by means of atom on a passivated semi-conductor floor and describes their interconnections with tailored nano-scale wiring. the most participants to the sector of unmarried molecule common sense gates and floor dangling bond atomic scale circuits concept and layout, have been introduced jointly for the 1st time to give a contribution on subject matters akin to molecule circuits, floor dangling bond circuits, quantum managed common sense gates and molecular qubits. Contributions during this quantity originate from the Barcelona workshop of the AtMol convention sequence, held from January 12-13 2012.

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Extra resources for Architecture and Design of Molecule Logic Gates and Atom Circuits: Proceedings of the 2nd AtMol European Workshop

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Rapid transmission changes being independent 34 R. Stadler a b ε1 γ t γ ε0 Fig. 6 (a) Analytical TB results for the purely electronic thermoelectric figure of merit ZTel calculated from the transmission functions of a two-site model (b) according to (8) and (11) with D 0:5 eV, "0 D 0:0 eV and jt j D 0:5 eV for "1 D 0:0 eV (red), 0:5 eV (black) and 1:5 eV (green). Reprinted with permission from [15], Copyright (2011), American Institute of Physics of lead-coupling broadenings are a general advantage of utilising QI since both transmission peaks and transmission minima are defined entirely by the molecular topology.

The local transmission for four molecules is shown in Fig. 3. These four molecules fall into two classes: those with destructive interference effects dominating their transmission near the Fermi energy (cases (c) and (d)) and those without (cases (a) and (b)). 1 Molecules Without Dominant Destructive Interference: Cases (a) and (b) from Fig. 3 In terms of the local transmission, the behaviour molecules without dominant destructive interference are reasonably simple. The transmission simply follows the bonds over the whole energy range under investigation, with the transmission simply dividing in two and recombining as it flows around a cyclic structure.

By using an STM tip. This would control Quantum Interference Effects in Electron Transport 27 Fig. 1 A molecular data storage scheme based on an aromatic molecule (naphthalene) bonded to four gold electrodes by sulphur atoms and polyacetylene wires. For the surface, an insulator has to be chosen to prevent crosstalk between the electrodes. The variables X, Y and Z could either be chemical substituents or alternatively connections to further electrodes. Reprinted with permission from [2], Copyright (2003), Institute of Physics the output current by changing the interference pattern of the electron scattering process, and the chemical substitution pattern could be used for data storage.

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Architecture and Design of Molecule Logic Gates and Atom Circuits: Proceedings of the 2nd AtMol European Workshop by Stefanos Kaxiras (auth.), Nicolas Lorente, Christian Joachim (eds.)


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