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Main Title: Orbit and spin resolved magnetic properties of size selected [ConRh](+) and [ConAu](+) nanoalloy clusters
Author(s): Dieleman, Dennis
Tombers, Matthias
Peters, Lars
Meyer, Jennifer
Peredkov, Sergey
Jalink, Jeroen
Neeb, Matthias
Eberhardt, Wolfgang
Rasing, Theo
Niedner-Schatteburg, Gereon
Kirilyuk, Andrei
Type: Article
Language Code: en
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.
Issue Date: 2015
Date Available: 25-Oct-2017
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Sponsor/Funder: DFG, TRR 88, Kooperative Effekte in homo- und heterometallischen Komplexen (3MET)
EC/FP7/257280/EU/Femtosecond Laser Control of Spins in Magnetic Materials: from fundamentals to nanoscale dynamics/FEMTOMAGNETISM
Journal Title: Physical chemistry, chemical physics
Publisher: Royal Society of Chemistry
Publisher Place: Cambridge
Volume: 17
Issue: 42
Publisher DOI: 10.1039/c5cp01923k
Page Start: 28372
Page End: 28378
EISSN: 1463-9084
ISSN: 1463-9076
Appears in Collections:Inst. Optik und Atomare Physik » Publications

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