Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1594850 | Solid State Communications | 2009 | 5 Pages |
Abstract
We have performed ab initio density functional theory calculations to investigate the miscibility and magnetic properties of pseudomorphically grown monolayers of NixPt1âx surface alloys on a Rh(111) substrate. We find that the formation of this alloy is energetically favored over phase-segregated forms, and its magnetic moment is also enhanced. A significant contribution to this enhanced magnetic moment is found to come from the induced moments on the otherwise non-magnetic elements Pt and Rh. A low concentration of Ni gives rise to a high magnetic moment per Ni atom. We find that a low effective coordination and a high non-spin-polarized density of states at the Fermi level are responsible for these enhanced moments.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Mighfar Imam, Madhura Marathe, Shobhana Narasimhan,