Stick-Sudden-Rotation and Structural Polymorphism of (C70)m–(Au)n Hybrid Nanoclusters

We fabricated magic number (C70)m–(Au)n clusters on the Au(111) substrate. These clusters are stable at room temperature but display unpredictable rotational movement. The time duration between two successive rotations is in the order of ∼hour. The cluster rotation is a thermally activated process due to energy fluctuation, which is more significant for small clusters. We followed the rotational movement of (C70)10–(Au)35 clusters using scanning tunneling microscopy. Our observation suggests that thermal fluctuation leads to rapid diffusion of Au atoms at the edges of the cluster and the cluster has many metastable configurations associated with structural polymorphism.

• Publication year

  2019

• Venue

  Journal of Physical Chemistry C

• Publication date

  2019-05-02

• Fields of study

  Materials Science, Physics

• Identifiers
  DOI 10.1021/ACS.JPCC.9B01349
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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