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Title: Terrace width dependence of cobalt silicide nucleation on Si(111)- (7×7)
Authors: Zilani, M.A.K. 
Xu, H. 
Wang, X.-S. 
Wee, A.T.S. 
Issue Date: 2006
Citation: Zilani, M.A.K., Xu, H., Wang, X.-S., Wee, A.T.S. (2006). Terrace width dependence of cobalt silicide nucleation on Si(111)- (7×7). Applied Physics Letters 88 (2) : 1-3. ScholarBank@NUS Repository.
Abstract: We have studied the size, shape transition, and nucleation sites of self-assembled cobalt silicide clusters on Si(111) -7×7 using scanning tunneling microscopy. Step decoration of solid-phase-epitaxy grown clusters (350-1000 °C) is observed on surfaces with narrow terrace widths (25-40 nm). Experiments repeated on surfaces with wide (>70 nm) terraces reveal significant differences with respect to shape, size, and growth morphology; a bimodal size distribution is observed due to cluster shape transition from irregular clusters to flat-top islands. The control of silicide island nucleation could have potential applications in electrode formation for molecular electronics and nanodevice fabrication. © 2006 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.2163627
Appears in Collections:Staff Publications

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