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

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Stick-sudden-rotation and structural polymorphism of (C70)mAun hybrid nanoclusters. / Wang, Yitao; Kaya, Dogan; Gao, Jianzhi; Guo, Quanmin.

In: Journal of Physical Chemistry C, Vol. 123, No. 20, 23.05.2019, p. 12791-12796.

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@article{610808c34c5b4544a3d80c7fa0b8c033,
title = "Stick-sudden-rotation and structural polymorphism of (C70)mAun hybrid nanoclusters",
abstract = "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. ",
author = "Yitao Wang and Dogan Kaya and Jianzhi Gao and Quanmin Guo",
year = "2019",
month = may,
day = "23",
doi = "10.1021/acs.jpcc.9b01349",
language = "English",
volume = "123",
pages = "12791--12796",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "20",

}

RIS

TY - JOUR

T1 - Stick-sudden-rotation and structural polymorphism of (C70)mAun hybrid nanoclusters

AU - Wang, Yitao

AU - Kaya, Dogan

AU - Gao, Jianzhi

AU - Guo, Quanmin

PY - 2019/5/23

Y1 - 2019/5/23

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85066118922&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.9b01349

DO - 10.1021/acs.jpcc.9b01349

M3 - Article

VL - 123

SP - 12791

EP - 12796

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 20

ER -