Stick-sudden-rotation and structural polymorphism of (C70)mAun hybrid nanoclusters

Yitao Wang, Dogan Kaya, Jianzhi Gao, Quanmin Guo

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1 Citation (Scopus)
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We fabricated magic number (C 70) 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 (C 70) 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.

Original languageEnglish
Pages (from-to)12791-12796
Number of pages6
JournalJournal of Physical Chemistry C
Issue number20
Early online date2 May 2019
Publication statusPublished - 23 May 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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