2005
DOI: 10.1016/j.susc.2005.05.045
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Thermal behaviour of ultra-thin Co overlayers on rutile TiO2(100) surface

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Cited by 26 publications
(8 citation statements)
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“…The presence of strong satellite peaks is evidence for high-spin Co 2+ species. The position of Co 2p 3/2 (782 eV) and ΔE to its satellite peak (5.3 eV) are similar to those of Co(OH) 2 or CoO supported on oxides [21][22][23] . Further analysis by Co K-edge X-ray absorption fine structure (XAFS) confirmed the presence of Co 2+ and the coordination of O to Co ( Supplementary Fig.…”
Section: Resultsmentioning
confidence: 57%
“…The presence of strong satellite peaks is evidence for high-spin Co 2+ species. The position of Co 2p 3/2 (782 eV) and ΔE to its satellite peak (5.3 eV) are similar to those of Co(OH) 2 or CoO supported on oxides [21][22][23] . Further analysis by Co K-edge X-ray absorption fine structure (XAFS) confirmed the presence of Co 2+ and the coordination of O to Co ( Supplementary Fig.…”
Section: Resultsmentioning
confidence: 57%
“…However, comparison of Co 2p 3/2 regions recorded under SRM with fully reduced Co recorded in pure H 2 (dashed blue line), revealed some extra features around 781 eV (indicated in the graph by an arrow). This is a sound indication of ionic cobalt species (Co x+ ) mixed with the dominant Co 0 phase [27], [28] and [29].…”
Section: Comparison Of Srm and Wgs Reactions Over Ptruco Catalystmentioning
confidence: 95%
“…2c is centered at 778.2 eV and is accompanied by weak satellite structure at higher energies. The BE and the weak satellite structure is characteristic of metallic cobalt (Co 0 ) [27] and [28]. However, comparison of Co 2p 3/2 regions recorded under SRM with fully reduced Co recorded in pure H 2 (dashed blue line), revealed some extra features around 781 eV (indicated in the graph by an arrow).…”
Section: Comparison Of Srm and Wgs Reactions Over Ptruco Catalystmentioning
confidence: 99%
“…При высоком уровне легирования пленок рутила кобальтом образуются стабильные субоксидные фазы CoTi 4 O 2 , которые, по мнению авторов [7], и явля-ются причиной высокотемпературного ферромагнетизма в пленках состава Ti 0.95 Co 0.05 O 2 . В ходе термического отжига металлической пленки Co толщиной 3 nm на поверхности TiO 2 (100) было обнаружено, что взаимо-действие начинается при температуре выше 673 K [8]. При этом металлические атомы кобальта окисляются до Co +2 , а Ti +4 восстанавливается до Ti +3 .…”
Section: Introductionunclassified
“…Если процессы фазообразования при ион-ной имплантации кобальта в монокристаллический ру-тил в ряде работ [7,8,12] обсуждаются, то представления о механизме диффузии кобальта в поликристаллическом рутиле, сопровождаемом фазообразованием, неразвиты.…”
unclassified