Title of article
Surface and interface magnetic effects in CoNRhM clusters
Author/Authors
Muٌoz-Navia، نويسنده , , M. and Villaseٌor-Gonzلlez، نويسنده , , P. and Dorantes-Dلvila، نويسنده , , J. and Pastor، نويسنده , , G.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
5
From page
302
To page
306
Abstract
The spin moments, orbital moments, and magnetic anisotropy energy (MAE) of CoNRhM clusters having N ⩽ 321 atoms are investigated in the framework of a self-consistent electronic model Hamiltonian. Alloying Co clusters with Rh results in a significant enhancement of the magnetization per Co atom. This is mainly due to the spin moments 〈Siz〉 induced at the Rh atoms, which amount to about 20% of the moment per Co atom (〈Siz〉 = (0.2–0.3)μB), and to an enhancement of the orbital moments of the Co atoms at the Co–Rh interfaces. The calculated MAEs reveal remarkable changes in the easy axis as a function of concentration. The magnetic properties are analyzed from a local perspective. The role of the chemical arrangement of Co and Rh atoms within the cluster is discussed.
Keywords
Spin and orbital magnetism , Magnetic anisotropy , Binary clusters
Journal title
Computational Materials Science
Serial Year
2006
Journal title
Computational Materials Science
Record number
1681401
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