Depinning transitions between adsorbate chains coupled by Friedel oscillations

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dc.identifier.uri Godzik, G. Block, T. Pfnür, Herbert 2018-02-19T14:27:05Z 2018-02-19T14:27:05Z 2003
dc.identifier.citation Godzik, G.; Block, T.; Pfnür, H.: Depinning transitions between adsorbate chains coupled by Friedel oscillations. In: Physical Review B 67 (2003), Nr. 12, 125424. DOI:
dc.description.abstract The low coverage phase transitions of the (formula presented) and the (formula presented) chain structures of the Sr/Mo(112) system have been investigated with low-energy electron diffraction (LEED) at constant coverages. It turns out that both structures show similar physics. They first undergo depinning phase transitions at temperatures just below 100 K into striped domain wall structures. The domain wall lattice shows continuous melting at temperatures between 197 and 218 K. Coupling between the adsorbate chains can be described by the potential created by adsorbate-induced charge density waves involving surface states. Within this model domain wall formation appears as thermal excitation of stacking faults on a discrete lattice. For the (formula presented) structure, domain wall formation energies of approximately 65 and 38 meV have been derived for heavy and light walls, respectively, from a fit to the experimental data of depinning. © 2003 The American Physical Society. eng
dc.language.iso eng
dc.publisher College Park, MD : American Physical Society
dc.relation.ispartofseries Physical Review B 67 (2003), Nr. 12
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject adsorbent eng
dc.subject molybdenum eng
dc.subject strontium eng
dc.subject adsorption eng
dc.subject anisotropy eng
dc.subject article eng
dc.subject chemical structure eng
dc.subject conformational transition eng
dc.subject electric potential eng
dc.subject electron diffraction eng
dc.subject energy eng
dc.subject excitation eng
dc.subject melting point eng
dc.subject molecular interaction eng
dc.subject oscillation eng
dc.subject phase transition eng
dc.subject structure analysis eng
dc.subject surface property eng
dc.subject temperature dependence eng
dc.subject theoretical model eng
dc.subject thermodynamics eng
dc.subject.ddc 530 | Physik ger
dc.title Depinning transitions between adsorbate chains coupled by Friedel oscillations eng
dc.type article
dc.type Text
dc.relation.issn 10980121
dc.bibliographicCitation.issue 12
dc.bibliographicCitation.volume 67
dc.bibliographicCitation.firstPage 125424
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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