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2009 | 7 | 2 | 257-263
Tytuł artykułu

Magnetism of free and supported clusters: a comparative study

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The presented work investigates the differences in magnetic properties of free and supported clusters via ab-initio calculations. The electronic structure of the clusters was calculated using a spin polarized relativistic multiple-scattering Green’s function formalism. We focus on Fe clusters of 2–9 atoms, either free or supported by Ni(001), and on Co clusters of 2–7 atoms, either free or supported by Au(111). For the supported clusters, the spin and orbital magnetic moments depend on the cluster size nearly monotonically, while for the free clusters large quasi-oscillations of magnetic moments with the cluster size were observed. Similarly, for supported clusters, the local spin magnetic moments decrease nearly linearly with increasing coordination number, while for free clusters of the same size range the trend is much more complicated. These findings are consistent with the fact that the spectral distribution function contains much sharper features for free clusters than for supported clusters.
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
7
Numer
2
Strony
257-263
Opis fizyczny
Daty
wydano
2009-06-01
online
2009-04-26
Twórcy
  • Institute of Physics of the AS CR v. v. i., Cukrovarnická 10, CZ-162 53, Prague, Czech Republic, sipr@fzu.cz
  • Department Chemie und Biochemie, Universität München, Butenandtstr. 5-13, D-81377, München, Germany
autor
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-008-0158-2
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