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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/141

Title: Ab initio study of structural stability of small 3d late transition metal clusters: Interplay of magnetization and hybridization
Authors: Datta, Soumendu
Kabir, Mukul
Saha-Dasgupta, Tanusri
Issue Date: 2011
Publisher: Phys. Rev. B
Citation: Soumendu Datta, Mukul Kabir, and Tanusri Saha-Dasgupta, Ab initio study of structural stability of small 3d late transition metal clusters: Interplay of magnetization and hybridization, Phys. Rev. B, 2011, 84, 075429
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.
URI: http://hdl.handle.net/123456789/141
Appears in Collections:2011

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