About: Cu induced morphology changes at Pb/Si (111) interface: separation of %225 x 5%22-Cu structure into individual domains

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The adsorption of small amount of Cu onto 1 x 1-Pb/Si (1 1 1) and root 3 x root 3R30 degrees-Pb/Si (1 1 1) coexisting phases was studied with variable temperature scanning tunnelling microscopy and spectroscopy. The most significant features connected with the deposition of copper at room temperature appeared as tiny clusters randomly scattered over smooth 1 x 1-Pb islands. Behaviour of the clusters at room at low temperature assumed that Cu penetrates through inert 1 x 1-Pb layer and mixes up with silicon. Moderate thermal treatment of (Cu, Pb)/Si (1 1 1) system induced the formation of shallow depressions of variable shape and size that are embedded into 1 x 1-Pb phase. Tunnelling spectra taken over a particular depression showed the peaks typical for the copper silicides. Moreover, the temperature rise causes the formation of large objects of distinctive hexagonal shape on neighbouring root 3 x root 3R30 degrees-Pb/Si (1 1 1) structure. Filled and empty state STM images of the hexagons differ strongly suggesting covalent bonding between constituent atoms. Detailed analysis of the hexagonal objects (and their agglomerates) reveals the specific features of quasi-commensurate 5 x 5-Cu structure. The adsorption of small amount of Cu onto 1 x 1-Pb/Si (1 1 1) and root 3 x root 3R30 degrees-Pb/Si (1 1 1) coexisting phases was studied with variable temperature scanning tunnelling microscopy and spectroscopy. The most significant features connected with the deposition of copper at room temperature appeared as tiny clusters randomly scattered over smooth 1 x 1-Pb islands. Behaviour of the clusters at room at low temperature assumed that Cu penetrates through inert 1 x 1-Pb layer and mixes up with silicon. Moderate thermal treatment of (Cu, Pb)/Si (1 1 1) system induced the formation of shallow depressions of variable shape and size that are embedded into 1 x 1-Pb phase. Tunnelling spectra taken over a particular depression showed the peaks typical for the copper silicides. Moreover, the temperature rise causes the formation of large objects of distinctive hexagonal shape on neighbouring root 3 x root 3R30 degrees-Pb/Si (1 1 1) structure. Filled and empty state STM images of the hexagons differ strongly suggesting covalent bonding between constituent atoms. Detailed analysis of the hexagonal objects (and their agglomerates) reveals the specific features of quasi-commensurate 5 x 5-Cu structure. (en)
Title	Cu induced morphology changes at Pb/Si (111) interface: separation of %225 x 5%22-Cu structure into individual domains Cu induced morphology changes at Pb/Si (111) interface: separation of %225 x 5%22-Cu structure into individual domains (en)
skos:prefLabel	Cu induced morphology changes at Pb/Si (111) interface: separation of %225 x 5%22-Cu structure into individual domains Cu induced morphology changes at Pb/Si (111) interface: separation of %225 x 5%22-Cu structure into individual domains (en)
skos:notation	RIV/68378271:_____/13:00437160!RIV15-AV0-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(IAA1010413)
http://linked.open...iv/cisloPeriodika	Apr
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Shukrynau, Pavel Cháb, Vladimír Mutombo, Pingo
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	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	67467
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00437160
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	scanning tunnelling microscopy; copper; lead; silicon; surface chemical reaction (en)
http://linked.open.../riv/klicoveSlovo	lead scanning tunnelling microscopy copper silicon surface chemical reaction
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[9E298336F1F6]
http://linked.open...i/riv/nazevZdroje	Applied Surface Science
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Nanoscience and nanotechnology with scanning probe microscopes: from atomic processes to material properties
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	270
http://linked.open...iv/tvurceVysledku	Cháb, Vladimír Mutombo, Pingo Hietschold, M. Shukrynau, Pavel
http://linked.open...ain/vavai/riv/wos	000316790200024
issn	0169-4332
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.apsusc.2012.12.151

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