Glass-like energy and property landscape of Pt nanoclusters

作者: Zhanghui Chen , Jingbo Li , Shushen Li , Lin-Wang Wang

DOI: 10.1007/S12274-017-1475-9

关键词: PhysicsAb initioMaxima and minimaDifferential evolutionAtomic physicsProperty (programming)Chemical physicsNanoclustersEnergy landscapeWork (thermodynamics)Energy (signal processing)

摘要: Pt nanoclusters play an important role in catalysis-related applications. Essential to their activities are geometries and energy landscapes. In this work, we studied the landscapes of clusters using a parallel differential evolution optimization algorithm accelerated ab initio atomic relaxation method, which allowed us explore unprecedentedly large numbers geometry local minima at level. We found many lower-energy isomers with low symmetry geometry. The were demonstrated be glass-like number minimum structures close global minimum. electronic magnetic properties most dramatically different from minimum, they should observed experimental measurements. connections between these further analyzed data mining techniques.

参考文章(65)
Noriko Watari, Shuhei Ohnishi, Atomic and electronic structures ofPd13andPt13clusters Physical Review B. ,vol. 58, pp. 1665- 1677 ,(1998) , 10.1103/PHYSREVB.58.1665
Andrew J. Ballard, Stefano Martiniani, Jacob D. Stevenson, Sandeep Somani, David J. Wales, Exploiting the potential energy landscape to sample free energy Wiley Interdisciplinary Reviews: Computational Molecular Science. ,vol. 5, pp. 273- 289 ,(2015) , 10.1002/WCMS.1217
David J. Wales, Mark A. Miller, Tiffany R. Walsh, Archetypal energy landscapes Nature. ,vol. 394, pp. 758- 760 ,(1998) , 10.1038/29487
Sandip De, Alexander Willand, Maximilian Amsler, Pascal Pochet, Luigi Genovese, Stefan Goedecker, Energy landscape of fullerene materials: a comparison of boron to boron nitride and carbon. Physical Review Letters. ,vol. 106, pp. 225502- ,(2011) , 10.1103/PHYSREVLETT.106.225502
Roy L. Johnston, Atomic and molecular clusters Applied Mathematics and Computation. ,(2002) , 10.1201/9780367805814
Oren M. Becker, Martin Karplus, The topology of multidimensional potential energy surfaces: Theory and application to peptide structure and kinetics Journal of Chemical Physics. ,vol. 106, pp. 1495- 1517 ,(1997) , 10.1063/1.473299
Ralph A. Wheeler, Roald. Hoffmann, A new magic cluster electron count and metal-metal multiple bonding Journal of the American Chemical Society. ,vol. 108, pp. 6605- 6610 ,(1986) , 10.1021/JA00281A025
Huanchen Zhai, Mai-Anh Ha, Anastassia N. Alexandrova, AFFCK: Adaptive Force-Field-Assisted ab Initio Coalescence Kick Method for Global Minimum Search. Journal of Chemical Theory and Computation. ,vol. 11, pp. 2385- 2393 ,(2015) , 10.1021/ACS.JCTC.5B00065
E. Aprà, F. Baletto, R. Ferrando, A. Fortunelli, Amorphization Mechanism of Icosahedral Metal Nanoclusters Physical Review Letters. ,vol. 93, pp. 065502- ,(2004) , 10.1103/PHYSREVLETT.93.065502