Marathe, Madhura ; Imam, Mighfar ; Narasimhan, Shobhana (2009) Mixing and magnetic properties of surface alloys: The role of the substrate Applied Surface Science, 256 (2). pp. 449-454. ISSN 0169-4332
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Official URL: http://doi.org/10.1016/j.apsusc.2009.06.119
Related URL: http://dx.doi.org/10.1016/j.apsusc.2009.06.119
Abstract
In this paper, we have performed ab initio density functional theory calculations to compare the miscibility and magnetic properties of two-dimensional binary surface alloys of the form MxN1−x (M = Fe or Co; N = Pt, Au, Ag, Cd or Pb) on two different substrates – Rh(1 1 1) and Ru(0 0 0 1). The trends in miscibility for the two substrates are found to be strikingly similar. The magnetic moments show qualitatively similar behavior, but their magnitudes differ: surface alloys on Rh(1 1 1) have larger magnetic moments than on Ru(0 0 0 1). We infer that strain plays the determining role in stabilizing these two-dimensional alloys, whereas the differences in magnetic moments can be ultimately attributed to the different number of d-electrons in Rh and Ru.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 123241 |
| Deposited On: | 09 Sep 2021 08:19 |
| Last Modified: | 09 Sep 2021 08:19 |
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