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Adatoms: An adatom is an atom that lies on a crystal surface, and can be thought of as the opposite of a surface vacancy. This term is used in surface chemistry, when describing single atoms lying on surfaces and surface roughness. The word is a contraction of "adsorbed atom". A single atom, a cluster of atoms, or a molecule or cluster of molecules may all be referred to by the general term "adparticle". This is often a thermodynamically unfavorable state. However, cases such as graphene may provide counter-examples.

Printed dictionaries and other books with definitions for Adatoms

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Google previewEncyclopedia of Electrochemical Power Sources (2013)

by Chris K. Dyer, Patrick T. Moseley, Zempachi Ogumi, David A. J. Rand, Bruno Scrosati

Adatoms may be considered as species formed or lost during the charge transfer. Adatoms are free to move about on surface by an activated process of surface diffusion. At low current densities, electrocrystallization is thought to proceed by ...

Google previewEncyclopedia of Chemical Physics and Physical Chemistry: Applications (2001)

by Nicholas D. Spencer, John H. Moore

were performed for several different model structures of the bilayer structure: besides the Cu adatoms, up to 200 Au and anion atoms were included in these model ...

Google previewDekker Encyclopedia of Nanoscience and Nanotechnology (2004)

by James A. Schwarz, Cristian I. Contescu, Karol Putyera

After landing, the metal adatoms may diffuse on the surface with a diffusion constant D determined by D ...

Google previewEncyclopedia of Spectroscopy and Spectrometry (2010)

'Quantum corral' barriers constructed by individually positioning Fe adatoms using the STM tip reveal, via STS, discrete resonances inside the corrals, consistent with size quantization (Figure 3). Figure 3 Perspective views of a 60 atom Fe ...

Google previewDictionary of Physics (2016)

by Palgrave Macmillan Ltd

adatoms, atoms on the surface of a solid, but not part of the crystaline lattice of the solid. ADCP, bacoustic doppler current profiler. adder, a circuit with an Poperational amplifier for adding analog voltages, which comprises an ...

Google previewEncyclopedia of Surface and Colloid Science - (2002)

by Arthur T. Hubbard

Electrocatalytic Properties of the Surfaces Modified by Foreign Metal Adatoms. In Advances in Electrochemistry and Electrochemical Engineering; Ger- ischer, H., Ed.; Wiley: New York, 1984; Vol.

Google previewThe Encyclopedia of Physics (2013)

by Robert Besancon

This is the Stranski-Krastonow mechanism” for deposition of crystals from the vapor and may be expected for situations in which the binding energy of the adatoms to the substrate is high. In some cases the initial monolayers are thought to be ...

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Scrabble value of A1D2A1T1O1M3S1

The value of this 7-letter word is 10 points, but it's not an accepted word in the Official Scrabble Players Dictionary.

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