Carbon encapsulated iron nanowires

• Autorzy: Ramirez R. , Weissmann M. , Garcia G. , Kiwi M.
• Konferencja: 8th International Conference on Intermolecular and Magnetic Interaction in Matter, Nałeczów 8-10 September 2005
• Języki publikacji: EN

Abstrakty

EN

A study of the structural and magnetic properties of carbon encapsulated iron nanowires is presented. The influence of carbon presence on iron magnetic ordering by means of an ab initio computer simulation has been studied. For wires tightly encapsulated, i.e. with large ratio of wires and nanotubes radii, the presence of carbon strongly alters Fe magnetic configuration of free standing wires, in some cases yielding antiferromagnetic ordering. The energy differences between ferromagnetic and antiferromagnetic phases are small enough to allow their coexistence in a nanowire, which is in agreement with the experimental evidence of exchange-bias in such systems.

Słowa kluczowe

EN

nanowires; nanotubes; magnetism; ab initio; exchange bias

PL

nanodruty; nanokable; nanorurki; magnetyzm; ferromagnetyzm; żelazo

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 4
• Strony: 883--890
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Ramirez R.

autor

Weissmann M.

autor

Garcia G.

autor

Kiwi M.

• Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago 7820436, Chile,

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