Controlling the width of self-assembled dysprosium silicide nanowires on the Si(001) surface

We present STM data that show that it is possible to use a metal induced 2 × 7 reconstruction of Si(001) to narrow the width distribution of Dy silicide nanowires. This behavior is distinct from the effect of the 7 × 7 reconstruction on the Si(111) surface, where the 7 × 7 serves as a static templat...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2012-02, Vol.24 (4), p.045003-15
Main Authors: Cui, Y, Chung, J, Nogami, J
Format: Article
Language:English
Subjects:
Antiphase boundaries
Boundaries
Condensed matter
Cross-disciplinary physics: materials science
rheology
Deposition
Dysprosium
Exact sciences and technology
Intermetallics
Materials science
Methods of nanofabrication
Nanoscale materials and structures: fabrication and characterization
Nanowires
Physics
Quantum wires
Self-assembly
Silicides
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Summary:We present STM data that show that it is possible to use a metal induced 2 × 7 reconstruction of Si(001) to narrow the width distribution of Dy silicide nanowires. This behavior is distinct from the effect of the 7 × 7 reconstruction on the Si(111) surface, where the 7 × 7 serves as a static template and the deposited metal avoids the unit cell boundaries on the substrate. In this case, the 2 × 7 is a dynamic template, and the nanowires nucleate at anti-phase boundaries between 2 × 7 reconstruction domains.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/24/4/045003