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Type: Artigo de periódico
Title: Hindered And Modulated Rotations Of Adsorbed Diatomic Molecules: States And Spectra
Author: Landman U.
Kleiman G.G.
Cleveland C.L.
Kuster E.
Barnett R.N.
Gadzuk J.W.
Abstract: We present results for the rotational states and spectra of adsorbed diatomic molecules whose rotations are frustrated by the interaction with the substrate, for several solvable models of the interaction potentials. For a vertical adsorption configuration, hindrance is modeled by constraining the molecular motion via an infinite conical potential well. For a horizontal adsorption configuration the infinite conical-well model as well as hindrance caused by a softer hindrance potential are studied. For both hindrance models we study the effects caused by a modulation of the molecular motion due to periodic azimuthal potentials dependent upon the adsorption site symmetry and other characteristics of the adsorption system. A detailed analysis of the spectra as a function of the parameters of the models is presented, allowing us to formulate a state classification scheme and draw general conclusions with regard to the systematics of the spectra of frustrated rotations of adsorbed diatomic molecules applicable to a wide class of potentials, which could guide the analysis and interpretation of data. © 1984 The American Physical Society.
Citation: Physical Review B. , v. 29, n. 8, p. 4313 - 4326, 1984.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.29.4313
Date Issue: 1984
Appears in Collections:Unicamp - Artigos e Outros Documentos

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