STM/STS Studies of Self-Organized Growth of Iron Silicide Nanocrystals on Vicinal Si(111) Surface

Wawro, A.; Suto, Shozo; Czajka, Ryszard; Kasuya, A.

doi:10.12693/aphyspola.104.303

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…Apart from the larger amount of reacted Fe, also a shift in nanocrystal composition, i.e. an increasing value for x in the FeSi x formula, might be responsible for a larger amount of Si needed, because our earlier composition estimation of a CsCl-type structure of FeSi x phase [58] revealed that, with increasing amount of deposited Fe, the vacancy contribution and thus the Si contribution in iron silicide crystallites grown at 700 • C also increased.…”

Section: Discussionmentioning

confidence: 97%

The solid state reaction of Fe with the Si(111) vicinal surface: splitting of bunched steps

Wawro¹,

Suto²,

Czajka³

et al. 2008

Nanotechnology

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The solid state reaction of deposited Fe (four monolayers, ML) with vicinal Si(111) substrate induced by subsequent thermal treatment has been studied using scanning tunnelling microscopy. At the lower range of annealing temperatures up to 400 °C the bunched steps of bare substrate are reproduced by the surface of the covering iron silicide layer. At 400 °C the onset of three-dimensional growth of iron silicide islands is observed. In comparison to the samples covered with smaller amounts of Fe it appears at a lower annealing temperature. Above 500 °C the bunched steps split into lower ones but more densely distributed due to proceeding reactions between Fe-rich iron silicide and Si substrate. As a consequence, at 700 °C the well-developed three-dimensional nanocrystallites of iron silicide are randomly distributed on the Si surface. This observation is in contrast to the formation of a regular array of iron silicide crystallites upon deposition of 2 ML of Fe.

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Section: Discussionmentioning

confidence: 97%

The solid state reaction of Fe with the Si(111) vicinal surface: splitting of bunched steps

Wawro¹,

Suto²,

Czajka³

et al. 2008

Nanotechnology

View full text Add to dashboard Cite

show abstract

Tomographic layer-by-layer analysis of epitaxial iron-silicide nanostructures by DFT-assisted STS

Dascalu

Diéguez

Pati

et al. 2019

Applied Surface Science

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STM/STS Studies of Self-Organized Growth of Iron Silicide Nanocrystals on Vicinal Si(111) Surface

Abstract: A CT A P HY SIC A P O LO N IC A ANo . 3{ 4 P r oceedi ng s o f t h e 3rd I n t ern at io n al Sy m p osi u m on Scan ni n g Pr o b e Sp ect rosc opy , SPS '0 3

Cited by 2 publications

References 29 publications

The solid state reaction of Fe with the Si(111) vicinal surface: splitting of bunched steps

The solid state reaction of Fe with the Si(111) vicinal surface: splitting of bunched steps

Tomographic layer-by-layer analysis of epitaxial iron-silicide nanostructures by DFT-assisted STS

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