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Mesoscopic Patterning Induced by Co-deposition of C60 and Ni on the MgO(100) Single Crystal

Published online by Cambridge University Press:  17 March 2011

Jiri Vacik ,
Hiroshi Naramoto ,
Kazumasa Narumi ,
Shunya Yamamoto  and
Kiyoshi Myashita
Jiri Vacik
Affiliation:
Advanced Science Research Center, Japan Atomic Energy Research Institute, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
Hiroshi Naramoto
Affiliation:
Advanced Science Research Center, Japan Atomic Energy Research Institute, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
Kazumasa Narumi
Affiliation:
Advanced Science Research Center, Japan Atomic Energy Research Institute, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
Shunya Yamamoto
Affiliation:
Department of Materials Development, Japan Atomic Energy Research Institute, 1233 Watanuki, Takasaki, Gunma 370-1292, Japan
Kiyoshi Myashita
Affiliation:
Gunma Prefecture Industrial Technology Research Laboratory, 190 Toriba Maebashi, Gunma 371-0845, Japan
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Abstract

We report on an unusual phenomenon of pattern formation in the mixture of Ni and C60 codeposited on the single crystal of MgO(100). Under certain deposition kinetics an array of periodic stripes was formed. The stripes consist of sub-half-micrometer Ni droplets (embedded in the complex Ni-C base) and encompassed with a polymerized C60 rind. The stripes are bound to the thin double-layer platform consisting of the epitaxial Ni and amorphous C (a-C) layers. During co-deposition the C60 molecules partly disintegrate and transform towards the a-C structures. Accumulation of a-C (immiscible with Ni) may induce thermodynamic instability in the system and trigger the process of spontaneous partitioning. As a principal mechanism of the stripe formation a sequential drift and co-ordinate release of the incited instability was proposed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 648: Symposium P – Growth, Evolution & Properties of Surfaces, Thin Films, and Self Organized Structure , 2000 , P3.50
Copyright
Copyright © Materials Research Society 2001

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