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首页> 外文会议>Symposium on Growth, Evolution and Properties of Surfaces, Thin Films and Self-Organized Structures, Nov 27-Dec 1, 2000, Boston, Massachusetts, U.S.A. >Mesoscopic Patterning Induced by Co-deposition of C_(60) and Ni on the MgO(l00) Single Crystal
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Mesoscopic Patterning Induced by Co-deposition of C_(60) and Ni on the MgO(l00) Single Crystal

机译：C_（60）和Ni共沉积在MgO（100）单晶上引起的介观图案化

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摘要

We report on an unusual phenomenon of pattern formation in the mixture of Ni and C_(60) co-deposited on the single crystal of MgO(l00). 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 C_(60) 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 C_(60) 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.
机译：我们报告了共沉积在MgO（100）单晶上的Ni和C_（60）的混合物中形成图案的异常现象。在某些沉积动力学下，形成了周期性条纹的阵列。这些条纹由半微米以下的镍小滴（嵌入在复杂的Ni-C碱中）组成，并被聚合的C_（60）皮包围。条带绑定到由外延Ni和非晶C（a-C）层组成的薄双层平台上。在共沉积过程中，C_（60）分子会部分分解并向a-C结构转化。 a-C（与Ni不混溶）的积累可能会引起系统中的热力学不稳定，并触发自发分配过程。作为条纹形成的主要机理，提出了引起不稳定性的顺序漂移和坐标释放。

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