Details

Autor(en) / Beteiligte

• Moyen, E.
• Macé, M.
• Agnus, G.
• Fleurence, A.
• Maroutian, T.
• Houzé, F.
• Stupakiewicz, A.
• Masson, L.
• Bartenlian, B.
• Wulfhekel, W.
• Beauvillain, P.
• Hanbücken, M.

Titel

Metal-rich Au-silicide nanoparticles for use in nanotechnology

Ist Teil von

• Applied physics letters, 2009-06, Vol.94 (23), p.233101-233101-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We present a route to functionalize chemically and magnetically silicon surfaces by a local passivation, taking advantage of Stranski-Krastanov growth mode of the Au-Si(111) system. Metal-rich Au-silicide nanoparticles, supported on a Si-rich two-dimensional Au-silicide layer, are obtained. Subsequently deposited Co is used to form magnetic nanostructures. The two Au silicides display a different chemical reactivity with Co enabling the fabrication of localized magnetic Co nanodots. These magnetic nanostructures can be aligned along step bunches of a vicinal Si(111) surface. By varying the growth parameters, the particle density can be tuned from 10 9 to the low 10 12   dots / in . 2 .