Magnetic phases of cobalt atomic clusters on tungsten

Pavel V. Lukashev, Ji Hyun Kim, Seolun Yang, Jae Sung Kim, Xumin Chen, Geoffrey Rojas, Jan Honolka, Ralph Skomski, Axel Enders, Renat F Sabirianov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

First-principle calculations are employed to show that the magnetic structure of small atomic clusters of Co, formed on a crystalline W(110) surface and containing 3-12 atoms, strongly deviates from the usual stable ferromagnetism of Co in other systems. The clusters are ferri-, ferro- or non-magnetic, depending on cluster size and geometry. We determine the atomic Co moments and their relative alignment, and show that antiferromagnetic spin alignment in the Co clusters is caused by hybridization with the tungsten substrate and band filling. This is in contrast with the typical strong ferromagnetism of bulk Co alloys, and ferromagnetic coupling in Fe/W(110) clusters.

Original languageEnglish (US)
Article number036003
JournalJournal of Physics Condensed Matter
Volume25
Issue number3
DOIs
StatePublished - Jan 23 2013

Fingerprint

atomic clusters
Tungsten
Ferromagnetism
Cobalt
tungsten
cobalt
Magnetic structure
ferromagnetism
alignment
Crystalline materials
Atoms
Geometry
Substrates
moments
geometry
atoms

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Magnetic phases of cobalt atomic clusters on tungsten. / Lukashev, Pavel V.; Kim, Ji Hyun; Yang, Seolun; Kim, Jae Sung; Chen, Xumin; Rojas, Geoffrey; Honolka, Jan; Skomski, Ralph; Enders, Axel; Sabirianov, Renat F.

In: Journal of Physics Condensed Matter, Vol. 25, No. 3, 036003, 23.01.2013.

Research output: Contribution to journalArticle

Lukashev, PV, Kim, JH, Yang, S, Kim, JS, Chen, X, Rojas, G, Honolka, J, Skomski, R, Enders, A & Sabirianov, RF 2013, 'Magnetic phases of cobalt atomic clusters on tungsten', Journal of Physics Condensed Matter, vol. 25, no. 3, 036003. https://doi.org/10.1088/0953-8984/25/3/036003
Lukashev PV, Kim JH, Yang S, Kim JS, Chen X, Rojas G et al. Magnetic phases of cobalt atomic clusters on tungsten. Journal of Physics Condensed Matter. 2013 Jan 23;25(3). 036003. https://doi.org/10.1088/0953-8984/25/3/036003
Lukashev, Pavel V. ; Kim, Ji Hyun ; Yang, Seolun ; Kim, Jae Sung ; Chen, Xumin ; Rojas, Geoffrey ; Honolka, Jan ; Skomski, Ralph ; Enders, Axel ; Sabirianov, Renat F. / Magnetic phases of cobalt atomic clusters on tungsten. In: Journal of Physics Condensed Matter. 2013 ; Vol. 25, No. 3.
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