Dysprosium silicide nanowires on Si(110)

Dysprosium deposited on Si(110) at 720 °C is observed to form self-assembled silicide nanowire (NW) structures with a single orientation and average dimensions of 15 nm wide and microns long. The NW sides grow into the substrate along inclined Si{111} planes, forming a V-shaped cross section with an...

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Veröffentlicht in:Applied physics letters 2003-12, Vol.83 (25), p.5292-5294
Hauptverfasser: He, Zhian, Stevens, M., Smith, David J., Bennett, P. A.
Format: Artikel
Sprache:eng
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Zusammenfassung:Dysprosium deposited on Si(110) at 720 °C is observed to form self-assembled silicide nanowire (NW) structures with a single orientation and average dimensions of 15 nm wide and microns long. The NW sides grow into the substrate along inclined Si{111} planes, forming a V-shaped cross section with an interface that is coherent on one side, described by DySi2(0001)//Si(111_) and DySi2[011_0]//Si[1_10], and incoherent on the other. This type of growth represents a physical mechanism for self-assembled NW formation that does not require anisotropic lattice mismatch.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1636244