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Metal-rich Au-silicide nanoparticles for use in nanotechnology
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View: Figures


Image of FIG. 1.
FIG. 1.

AFM image after deposition of 3 ML of Au on Si(111) at —topographical view in (a) and local resistance in (b).

Image of FIG. 2.
FIG. 2.

(a) STM image of a Au–Si particle, of 3.5 nm height, in the derivative mode, , , added balls on the facet correspond to the surface mesh shown in Fig. 2(c). (b) Schematic side view of the silicide island, corresponding to a cut along the line of Fig. 2(a). (c) Lattice of the (102) facet of the silicide as described by von Allmen et al. in Ref. 6 and corresponding to STM data. (d) TEM cross sectional views of an Au–Si island, atomic planes are visible, global view of the islands in the inset.

Image of FIG. 3.
FIG. 3.

Out-of-plane magnetic hysteresis loops of the MOKE rotation measured in polar configuration at room temperature after the silicidation of a 3.6 ML thick Co film deposited on the Au–Si islands-functionalized substrate and on a reference substrate without the islands. Only the islands-functionalized substrate exhibits a magnetic signal, after subtraction of the diamagnetic contributions of silicide film and Si substrate (identical for both samples).

Image of FIG. 4.
FIG. 4.

(a) STM image of a vicinal Si(111) surface miscut by 1.5° along direction obtained at room temperature after UHV heat treatment, parallel step bunches are separated by equally sized terraces. (b) STM image (, ), taken after deposition of 3.5 ML Au at . Au-rich islands are aligned along the step-bunches with a density of . Images sizes are .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Metal-rich Au-silicide nanoparticles for use in nanotechnology