CAS OpenIR  > 中科院上海原子核所2003年前
Lattice dynamics of Co nanoparticles in Ag
El Azzaoui, M; Hou, M; Pattyn, H; Verheyden, J; Deweerd, W; Koops, G; Zhang, GL(张桂林)
Conference Name4th International Conference on Nanostructured Materials (NANO 98)
Conference DateJUN 14-19, 1998
AbstractA comparison is made between the lattice dynamics of cobalt embedded in silver, studied by Mossbauer spectroscopy and by classical molecular dynamics (MD). The MD is achieved in the NPT ensemble by means of the Rahman Parrinello technique which accounts for the temporal fluctuations of all the components of the stress tensor. Atomic interactions are described within an empirical embedded atom model. The mean square thermal vibration amplitude of substitutional Co is calculated and found to compare well with experimental value extracted from Mossbauer spectroscopy. Mossbauer spectroscopy shows the Debye temperature to be cluster size dependent and a comparison with MD suggests the possibility of quantitative cluster size estimates. (C) 1999 Acta Metallurgica Inc.
Indexed BySCI
Funding Project应物所课题组
Document Type会议论文
Recommended Citation
GB/T 7714
El Azzaoui, M,Hou, M,Pattyn, H,et al. Lattice dynamics of Co nanoparticles in Ag[C],1999:299.
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