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Condensed Matter > Materials Science

arXiv:1502.00107 (cond-mat)
[Submitted on 31 Jan 2015]

Title:Density-functional study of the pure and palladium doped small copper and silver clusters

Authors:Hamideh Kahnouji, Halimeh Najafvandzadeh, S. Javad Hashemifar, Mojtaba Alaei, Hadi Akbarzadeh
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Abstract:The size-dependent electronic, structural, magnetic and vibrational properties of small pure cop- per and silver clusters and their alloys with one and two palladium atoms are studied by using full-potential all-electron density functional computations. The stable isomers of these clusters are identified and their theoretical magic numbers are determined via the analysis of the second differ- ence of their minimized energy. We discuss that the doped Pd atoms generally prefer to sit in the high coordination sites of the pure clusters. It is argued that Pd doping influences the structural properties and the two dimensional to three dimensional structural cross over in the small Cu and Ag clusters. The many body based GW correction is applied for more accurate determination of the electron affinity and ionization potential of these systems. Magnetic and vibrational properties of the pure and doped clusters are presented and discussed.
Comments: 7pages,5figures
Subjects: Materials Science (cond-mat.mtrl-sci); Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:1502.00107 [cond-mat.mtrl-sci]
  (or arXiv:1502.00107v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.1502.00107

Submission history

From: Hamideh Kahnouji [view email]
[v1] Sat, 31 Jan 2015 13:47:23 UTC (147 KB)
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