中国物理B ›› 2001, Vol. 10 ›› Issue (13): 163-166.

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ATOMIC FORCE MICROSCOPY STUDIES AND MODELING OF SURFACE STRUCTURES PATTERNED DURING OSTWALD RIPENING AT Fe/Mo MULTILAYER SYSTEMS

A. Berlinger1, P. von Blanckenhagen1, 沈电洪2, 罗光明2, 康宁2, 赖武彦2   

  1. (1)Forschungszentrum Karlsruhe, Institut fuer Nanotechnologie, Postfach 3640 D-76021 Karlsruhe, Germany; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2001-04-20 出版日期:2001-12-25 发布日期:2001-11-20
  • 基金资助:
    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.

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#   

  1. a Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Forschungszentrum Karlsruhe, Institut fuer Nanotechnologie, Postfach 3640 D-76021 Karlsruhe, Germany
  • Received:2001-04-20 Online:2001-12-25 Published:2001-11-20
  • Supported by:
    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.

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摘要： 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.

关键词: AFM, multilayer, Ostwald ripening

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.

Key words: AFM, multilayer, Ostwald ripening

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  • 6116P