ATOMIC FORCE MICROSCOPY STUDIES AND MODELING OF SURFACE STRUCTURES PATTERNED DURING OSTWALD RIPENING AT Fe/Mo MULTILAYER SYSTEMS
Shen Dian-hong(沈电洪)a, Luo Guang-ming (罗光明)a, Kang Ning(康宁)a, Lai Wu-yan(赖武彦)a, A. Berlingerb, P. von Blanckenhagenb#br#
aInstitute of Physics, Chinese Academy of Sciences, Beijing 100080, China; bForschungszentrum Karlsruhe, Institut fuer Nanotechnologie, Postfach 3640 D-76021 Karlsruhe, Germany
Abstract Fe/Mo multilayers which were grown by sputtering, annealed in high vacuum and analyzed by means of Atomic Force Microscopy and Scanning Electron Microscopy. Concentric circle-1ike patterns were observed after annealing. Two-dimensional Ostwald ripening mechanisms in immiscible systems of Fe/Mo may explain the formation of these structures. We simulated pattern formation in a late stage of the phase separation by applying the Thomas-Freundlich thermodynamic relation. Based on a two-dimensional mode1 in the framework of the Lifshitz-Slyozov theory, our modeling has been extended to include the diffusion limitation in a multi-cluster system.
Received: 20 April 2001
Accepted manuscript online:
Fund: Project supported by the Foundation of Chinese Academy of Sciences (Grant No. KJ951-A1-401) and by the International Office of the German Ministry of Education and Research.
Cite this article:
Shen Dian-hong(沈电洪), Luo Guang-ming (罗光明), Kang Ning(康宁), Lai Wu-yan(赖武彦), A. Berlinger , P. von Blanckenhagen ATOMIC FORCE MICROSCOPY STUDIES AND MODELING OF SURFACE STRUCTURES PATTERNED DURING OSTWALD RIPENING AT Fe/Mo MULTILAYER SYSTEMS 2001 Chinese Physics 10 163
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