CAS OpenIR  > 中科院上海原子核所2003年前
Growth and lattice dynamics of Co nanoparticles embedded in Ag: A combined molecular-dynamics simulation and Mossbauer study
Hou, M; El Azzaoui, M; Pattyn, H; Verheyden, J; Koops, G; Zhang, GL(张桂林)
2000
Source PublicationPHYSICAL REVIEW B
ISSN0163-1829
Volume62Issue:8Pages:5117
AbstractWe use Mossbauer spectroscopy in combination with atomic scale modeling in order to gather a comprehensive understanding of the growth and the dynamics of cobalt nanoprecipitates in silver. The modeling makes use of classical molecular dynamics in the canonical ensemble by means of the Rahman-Parinello technique. Atomic interactions are governed by an embedded atom model, which is validated for the static Co-Ag interaction by means of a comparison with extended x-ray absorption fine structure measurements and for the dynamical interaction with Mossbauer spectroscopy data. This allows us to identify the cluster size dependent atomic arrangements at the cluster-matrix interface, where strong relaxation takes place. A detailed analysis of the Mossbauer spectra taken at two temperatures after annealing at different temperatures allows us not only to characterize the cluster size dependence of magnetic properties, but also to evidence a possible Ostwald ripening growth mechanism. The mean and interface Debye temperatures are deduced from the Mossbauer spectra and found quite consistent with the model predictions. On this basis, the atomic scale modeling allows us to identify detail of atomic vibrational properties as a function of distance from the cluster center and a discontinuity of the vibration amplitudes at the precipitate-matrix interface is evidenced.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000089003200052
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9986
Collection中科院上海原子核所2003年前
Recommended Citation
GB/T 7714
Hou, M,El Azzaoui, M,Pattyn, H,et al. Growth and lattice dynamics of Co nanoparticles embedded in Ag: A combined molecular-dynamics simulation and Mossbauer study[J]. PHYSICAL REVIEW B,2000,62(8):5117.
APA Hou, M,El Azzaoui, M,Pattyn, H,Verheyden, J,Koops, G,&Zhang, GL.(2000).Growth and lattice dynamics of Co nanoparticles embedded in Ag: A combined molecular-dynamics simulation and Mossbauer study.PHYSICAL REVIEW B,62(8),5117.
MLA Hou, M,et al."Growth and lattice dynamics of Co nanoparticles embedded in Ag: A combined molecular-dynamics simulation and Mossbauer study".PHYSICAL REVIEW B 62.8(2000):5117.
Files in This Item:
File Name/Size DocType Version Access License
Growth and lattice d(859KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hou, M]'s Articles
[El Azzaoui, M]'s Articles
[Pattyn, H]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hou, M]'s Articles
[El Azzaoui, M]'s Articles
[Pattyn, H]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hou, M]'s Articles
[El Azzaoui, M]'s Articles
[Pattyn, H]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Growth and lattice dynamics of Co nanoparticles embedded in Ag A combined molecular-dynamics simulation and Mossbauer study.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.