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Issue 42, 2015
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Orbit and spin resolved magnetic properties of size selected [ConRh]+ and [ConAu]+ nanoalloy clusters

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Abstract

Bi-metallic nanoalloys of mixed 3d–4d or 3d–5d elements are promising candidates for technological applications. The large magnetic moment of the 3d materials in combination with a high spin–orbit coupling of the 4d or 5d materials give rise to a material with a large magnetic moment and a strong magnetic anisotropy, making them ideally suitable in for example magnetic storage devices. Especially for clusters, which already have a higher magnetic moment compared to the bulk, these alloys can profit from the cooperative role of alloying and size reduction in order to obtain magnetically stable materials with a large magnetic moment. Here, the influence of doping of small cobalt clusters on the spin and orbital magnetic moment has been studied for the cations [Co8−14Au]+ and [Co10−14Rh]+. Compared to the undoped pure cobalt [CoN]+ clusters we find a significant increase in the spin moment for specific CoN−1Au+ clusters and a very strong increase in the orbital moment for some CoN−1Rh+ clusters, with more than doubling for Co12Rh+. This result shows that substitutional doping of a 3d metal with even just one atom of a 4d or 5d metal can lead to dramatic changes in both spin and orbital moment, opening up the route to novel applications.

Graphical abstract: Orbit and spin resolved magnetic properties of size selected [ConRh]+ and [ConAu]+ nanoalloy clusters

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Article information


Submitted
02 Apr 2015
Accepted
19 Jun 2015
First published
19 Jun 2015

This article is Open Access

Phys. Chem. Chem. Phys., 2015,17, 28372-28378
Article type
Paper
Author version available

Orbit and spin resolved magnetic properties of size selected [ConRh]+ and [ConAu]+ nanoalloy clusters

D. Dieleman, M. Tombers, L. Peters, J. Meyer, S. Peredkov, J. Jalink, M. Neeb, W. Eberhardt, T. Rasing, G. Niedner-Schatteburg and A. Kirilyuk, Phys. Chem. Chem. Phys., 2015, 17, 28372
DOI: 10.1039/C5CP01923K

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