Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
114 (2001), S. 9115-9119
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
We report on the unusual phenomenon of pattern formation in the thin film of Ni+C60 mixture deposited on the MgO(100) substrate. Under certain deposition kinetics a periodic system of stripe domains was formed. The domains consist of sub-half-micrometer large droplets encompassed with a thin C60—based rind with a possible polymeric structure. The stripes are embedded in the double-layer platform falling into the epitaxial Ni and amorphous-C (a-C) thin films. During co-deposition the C60 molecules partly disintegrate and transform towards a-C. Due to the accumulation of a-C (with limited solubility in Ni) thermodynamic instability arises in the system and reaching a certain level, it triggers spontaneous partitioning (and self-organization) of the deposited material. As a principal mechanism of the pattern formation, a sequential drift and coordinate release of the thermodynamic instability is proposed. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1368656
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