Matches in SemOpenAlex for { <https://semopenalex.org/work/W2002247448> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2002247448 endingPage "61" @default.
- W2002247448 startingPage "48" @default.
- W2002247448 abstract "Thermal N atoms from an atomic beam adsorb on Cu(111) at 300 K to produce a disordered surface with a N coverage of up to 2 ML. Annealing above 500 K produced an ordered surface showing three domains of a Cu(100)-c(2×2)N overlayer, with a structure similar to that of bulk Cu3N. Parallel to the Cu(111) and the Cu(100) close packed directions, the overlayer is expanded by ∼3% compared to the Cu close packed distance, but by less than 1% perpendicular to this. STM images show the overlayer has an irregular corrugation with rows running approximately parallel to the close packed direction. This corrugation is caused by buckling of the Cu(100) overlayer to obtain local registry with the Cu(111) close packed rows and relieve stress in the Cu3N overlayer. N from the ordered Cu(100)-c(2×2)N overlayer, formed by atom dosing, desorbed in a zero order peak near 700 K with an activation barrier of 143 kJ mol−1. For N coverages θN>0.42 ML a broad desorption feature appeared above 500 K with an activation energy ≥88 kJ mol−1. This peak is associated with desorption from a disordered N/Cu(111) surface, which can accommodate in excess of 2 ML of N with considerable penetration into the Cu surface. Desorption from surfaces with θN>0.42 ML forms the stable Cu(100)-c(2×2)N overlayer and also populates a new desorption peak, near 780 K, which is not seen for initial coverages less than 0.42 ML. This peak is intense for N+/N+2 sputtered surfaces and is attributed to a subsurface site. At high coverage and heating rates the presence of excess N stabilises desorption from the Cu(100)-c(2×2)N overlayer and N2 desorption becomes explosive. The desorption behaviour can be modelled by assuming desorption occurs preferentially from a dilute phase on Cu(111) terraces, with Cu(100)-c(2×2)N islands acting as a reservoir for N. We discuss evidence for this and other possible models using information from STM images of the surface and speculate on the N2 desorption site." @default.
- W2002247448 created "2016-06-24" @default.
- W2002247448 creator A5022417567 @default.
- W2002247448 creator A5044115824 @default.
- W2002247448 creator A5050939128 @default.
- W2002247448 creator A5059832896 @default.
- W2002247448 creator A5071715744 @default.
- W2002247448 date "1998-09-01" @default.
- W2002247448 modified "2023-09-24" @default.
- W2002247448 title "Nitrogen induced restructuring of Cu(111) and explosive desorption of N2" @default.
- W2002247448 cites W1897717675 @default.
- W2002247448 cites W1965842497 @default.
- W2002247448 cites W1971865635 @default.
- W2002247448 cites W1973449602 @default.
- W2002247448 cites W1973457402 @default.
- W2002247448 cites W1995353898 @default.
- W2002247448 cites W1997430731 @default.
- W2002247448 cites W1997798260 @default.
- W2002247448 cites W2007205227 @default.
- W2002247448 cites W2009780309 @default.
- W2002247448 cites W2009922364 @default.
- W2002247448 cites W2009924883 @default.
- W2002247448 cites W2017887954 @default.
- W2002247448 cites W2018400877 @default.
- W2002247448 cites W2024084738 @default.
- W2002247448 cites W2026780606 @default.
- W2002247448 cites W2028081582 @default.
- W2002247448 cites W2032127425 @default.
- W2002247448 cites W2033731585 @default.
- W2002247448 cites W2036798746 @default.
- W2002247448 cites W2038186917 @default.
- W2002247448 cites W2038254162 @default.
- W2002247448 cites W2042215709 @default.
- W2002247448 cites W2056584513 @default.
- W2002247448 cites W2064120637 @default.
- W2002247448 cites W2072838474 @default.
- W2002247448 cites W2074713107 @default.
- W2002247448 cites W2074924990 @default.
- W2002247448 cites W4230074995 @default.
- W2002247448 doi "https://doi.org/10.1016/s0039-6028(98)00460-9" @default.
- W2002247448 hasPublicationYear "1998" @default.
- W2002247448 type Work @default.
- W2002247448 sameAs 2002247448 @default.
- W2002247448 citedByCount "37" @default.
- W2002247448 countsByYear W20022474482012 @default.
- W2002247448 countsByYear W20022474482013 @default.
- W2002247448 countsByYear W20022474482017 @default.
- W2002247448 countsByYear W20022474482018 @default.
- W2002247448 countsByYear W20022474482019 @default.
- W2002247448 countsByYear W20022474482020 @default.
- W2002247448 crossrefType "journal-article" @default.
- W2002247448 hasAuthorship W2002247448A5022417567 @default.
- W2002247448 hasAuthorship W2002247448A5044115824 @default.
- W2002247448 hasAuthorship W2002247448A5050939128 @default.
- W2002247448 hasAuthorship W2002247448A5059832896 @default.
- W2002247448 hasAuthorship W2002247448A5071715744 @default.
- W2002247448 hasConcept C113196181 @default.
- W2002247448 hasConcept C147789679 @default.
- W2002247448 hasConcept C150394285 @default.
- W2002247448 hasConcept C162711632 @default.
- W2002247448 hasConcept C185592680 @default.
- W2002247448 hasConcept C192562407 @default.
- W2002247448 hasConcept C2775913835 @default.
- W2002247448 hasConcept C2781059571 @default.
- W2002247448 hasConcept C43617362 @default.
- W2002247448 hasConcept C8010536 @default.
- W2002247448 hasConceptScore W2002247448C113196181 @default.
- W2002247448 hasConceptScore W2002247448C147789679 @default.
- W2002247448 hasConceptScore W2002247448C150394285 @default.
- W2002247448 hasConceptScore W2002247448C162711632 @default.
- W2002247448 hasConceptScore W2002247448C185592680 @default.
- W2002247448 hasConceptScore W2002247448C192562407 @default.
- W2002247448 hasConceptScore W2002247448C2775913835 @default.
- W2002247448 hasConceptScore W2002247448C2781059571 @default.
- W2002247448 hasConceptScore W2002247448C43617362 @default.
- W2002247448 hasConceptScore W2002247448C8010536 @default.
- W2002247448 hasIssue "1-2" @default.
- W2002247448 hasLocation W20022474481 @default.
- W2002247448 hasOpenAccess W2002247448 @default.
- W2002247448 hasPrimaryLocation W20022474481 @default.
- W2002247448 hasRelatedWork W1983777375 @default.
- W2002247448 hasRelatedWork W1991278245 @default.
- W2002247448 hasRelatedWork W2020974573 @default.
- W2002247448 hasRelatedWork W2031701408 @default.
- W2002247448 hasRelatedWork W2032957284 @default.
- W2002247448 hasRelatedWork W2038688339 @default.
- W2002247448 hasRelatedWork W2076198844 @default.
- W2002247448 hasRelatedWork W2326111784 @default.
- W2002247448 hasRelatedWork W2326115968 @default.
- W2002247448 hasRelatedWork W4243115327 @default.
- W2002247448 hasVolume "415" @default.
- W2002247448 isParatext "false" @default.
- W2002247448 isRetracted "false" @default.
- W2002247448 magId "2002247448" @default.
- W2002247448 workType "article" @default.