Ab initio study of structural stability of small 3d late transition metal clusters: Interplay of magnetization and hybridization
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Kabir-2011-Ab initio study of structural stability.pdf
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Author(s)
Datta, Soumendu
Saha-Dasgupta, Tanusri
Kabir, Mohammad Mukul
Date Issued
July 2011
Journal
Physical Review B
Publisher
American Physical Society
Citation
Datta, Soumendu, Mukul Kabir, and Tanusri Saha-Dasgupta. “Ab initio study of structural stability of small 3d late transition metal clusters: Interplay of magnetization and hybridization.” Physical Review B 84 (2011): n. pag. Web. 17 Nov. 2011. © 2011 American Physical Society
Version
Final published version
Abstract
Using first-principles density-functional-theory–based calculations, we analyze the structural stability of small clusters of 3d late transition metals. We consider the relative stability of the two structures: layer-like structures with hexagonal closed packed stacking and more compact structures of icosahedral symmetry. We find that the Co clusters show an unusual stability in hexagonal symmetry compared to the small clusters of other members, which are found to stabilize in icosahedral-symmetry–based structure. Our study reveals that this is driven by the interplay between the magnetic-energy gain and the gain in covalency through the s-d hybridization effect. Although we have focused our study primarily on clusters with 19 atoms, we find this behavior to be general for clusters with between 15 and 20 atoms.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.84.075429
