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Substrate dependent buffer‐layer assisted growth of nanoclusters
Author(s) -
Honolka Jan,
Sessi Violetta,
Zhang Jian,
Hertenberger Simon,
Enders Axel,
Kern Klaus
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200945510
Subject(s) - scanning tunneling microscope , nanoclusters , wetting layer , substrate (aquarium) , layer (electronics) , wetting , materials science , monolayer , buffer (optical fiber) , morphology (biology) , crystallography , diffusion , nanometre , nanotechnology , chemical physics , chemical engineering , chemistry , composite material , telecommunications , genetics , geology , oceanography , physics , biology , computer science , engineering , thermodynamics
The role of the substrate on the morphology of nanometer size clusters fabricated by buffer layer assisted growth (BLAG) was studied using scanning tunneling microscopy. Clusters of Fe and Co were deposited on Ag(111), Cu(100), Rh(111), and Pt(111) surfaces using identical BLAG parameters, which are temperature, as well as metal and buffer layer coverage. Semi‐hemispherical clusters are found on Ag(111) and Cu(100), while flat monolayer high islands are observed on Rh(111) and Pt(111) due to complete wetting. The results of this study are in agreement with the common notion that BLAG is useful to deposit clusters of virtually any material on any substrate, however, the shape, size, and lateral distribution of the resulting clusters depend strongly on the substrate surface free energy and diffusion processes.
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