Self-organisation of size-selected CoxPt1-x clusters on graphite

被引：5

作者：

Bardotti, L. ^{[1
]}

Tournus, F. ^{[1
]}

Albin, C. ^{[1
]}

Boisron, O. ^{[1
]}

Dupuis, V. ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5306, Inst Lumiere Matiere, F-69622 Villeurbanne, France

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2014年 / 16卷 / 48期

关键词：

NANOSTRUCTURES; NANOCLUSTER; DIFFUSION; SURFACES; SYSTEMS;

D O I：

10.1039/c4cp02119c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sub-monolayer thin film morphologies obtained by deposition of size-selected CoxPt1-x clusters on graphite have been analyzed for different values of x. In all cases, the preformed clusters can easily diffuse on the surface and gather to form islands of clusters. By changing the cluster stoichiometry, very different morphologies can be obtained, going from large ramified islands to "bunches'' of non-contacting incident clusters. We put into evidence that the introduction of platinum atoms in the incident particles drastically changes the interaction between clusters and offers the opportunity to control the coalescence process between them. In this way, by modifying the cluster reactivity, a local self-organization of size-selected magnetic nanoparticles can be achieved.

引用

页码：26653 / 26657

页数：5

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