About: A LEED study of NO superstructures on the Pd(111) surface

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have examined two adsorption structures of NO on the Pd(111) surface and the transformation between them. Low-energy electron diffraction (LEED) I (V ) curves of the Pd(111)-p(2 x 2)-NO and Pd(111)-c(4 x 2)-NO surface structures were acquired and analyzed using tensor LEED. Our structural models confirm a previous study by scanning tunneling microscopy and DFT (Hansen et al 2002 Surf. Sci. 496 1). In the c(4 x 2)-NO structure, which forms at an NO coverage of 0.5 monolayers (ML), the NO molecules occupy fcc and hcp hollow sites and are almost upright with only slight tilting, possibly related to NO-NO repulsion. In the p(2 x 2)-NO structure (0.75 ML), with two NO molecules in hollow sites and one in an on-top site, we find strong tilting of the on-top molecule. Upon heating, thermal desorption of NO leads to a transition from the p(2 x 2) to the c(4 x 2) structure, which leads to splitting of the diffraction spots and/or streaky spots. The transition is discussed in terms of domain walls. We have examined two adsorption structures of NO on the Pd(111) surface and the transformation between them. Low-energy electron diffraction (LEED) I (V ) curves of the Pd(111)-p(2 x 2)-NO and Pd(111)-c(4 x 2)-NO surface structures were acquired and analyzed using tensor LEED. Our structural models confirm a previous study by scanning tunneling microscopy and DFT (Hansen et al 2002 Surf. Sci. 496 1). In the c(4 x 2)-NO structure, which forms at an NO coverage of 0.5 monolayers (ML), the NO molecules occupy fcc and hcp hollow sites and are almost upright with only slight tilting, possibly related to NO-NO repulsion. In the p(2 x 2)-NO structure (0.75 ML), with two NO molecules in hollow sites and one in an on-top site, we find strong tilting of the on-top molecule. Upon heating, thermal desorption of NO leads to a transition from the p(2 x 2) to the c(4 x 2) structure, which leads to splitting of the diffraction spots and/or streaky spots. The transition is discussed in terms of domain walls. (en)
Title	A LEED study of NO superstructures on the Pd(111) surface A LEED study of NO superstructures on the Pd(111) surface (en)
skos:prefLabel	A LEED study of NO superstructures on the Pd(111) surface A LEED study of NO superstructures on the Pd(111) surface (en)
skos:notation	RIV/00216305:26210/09:PU79998!RIV10-MSM-26210___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GEFON/06/E001), P(LC06040), Z(MSM0021630508)
http://linked.open...iv/cisloPeriodika	13
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kostelník, Petr Šikola, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	301304
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/09:PU79998
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	NO, PD(111), tensor LEED, superstructure (en)
http://linked.open.../riv/klicoveSlovo	NO PD(111) tensor LEED superstructure
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[BC21818B2E93]
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Condensed Matter
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Spin-dependent transport and electronic correlations in nanostructures Structures for Nanophotonics and Nanoelectronics
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	21
http://linked.open...iv/tvurceVysledku	Kostelník, Petr Šikola, Tomáš Schmid, Michael Varga, P.
http://linked.open...n/vavai/riv/zamer	Anorganické nanomateriály a nanostruktury: vytváření, analýza, vlastnosti
issn	0953-8984
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	26210
is http://linked.open...avai/riv/vysledek of	A LEED study of NO superstructures on the Pd(111) surface A LEED study of NO superstructures on the Pd(111) surface A LEED study of NO superstructures on the Pd(111) surface A LEED study of NO superstructures on the Pd(111) surface

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