Heteroepitaxial gold (111) rings on mica substrates

Zhang, X. W.; Chen, N. F.; Yan, F.; Goedel, Werner A.
May 2005
Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p203102
Academic Journal
Two-dimensionally arranged gold rings were prepared by depositing a polymeric membrane bearing a dense array of uniform pores onto a mica substrate, filling the pores with a solution of a gold precursor, evaporation of the solvent and calcinations. The epitaxy of gold rings is confirmed by x-ray diffraction measurements, and the epitaxial relationship between gold rings and the mica was found to be Au(111)[1-10]|mica(001)[010]. The polar and azimuthal angular spreads are 0.3° and 1°, respectively, which is at least equal to or better than the quality of the corresponding epitaxial gold-film on mica.


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