Large Magnetic Moments of Arsenic-Doped Mn Clusters and their Relevance to Mn-Doped III-V Semiconductor Ferromagnetism

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dc.creatorKabir, Mukul
dc.creatorKanhere, D. G.
dc.creatorMookerjee, Abhijit
dc.date2005-03-01
dc.date.accessioned2026-07-07T06:29:23Z
dc.date.available2026-07-07T06:29:23Z
dc.descriptionWe report electronic and magnetic structure of arsenic-doped manganese clusters from density-functional theory using generalized gradient approximation for the exchange-correlation energy. We find that arsenic stabilizes manganese clusters, though the ferromagnetic coupling between Mn atoms are found only in Mn$_2$As and Mn$_4$As clusters with magnetic moments 9 $μ_B$ and 17 $μ_B$, respectively. For all other sizes, $x=$ 3, 5-10, Mn$_x$As clusters show ferrimagnetic coupling. It is suggested that, if grown during the low temperature MBE, the giant magnetic moments due to ferromagnetic coupling in Mn$_2$As and Mn$_4$As clusters could play a role on the ferromagnetism and on the variation observed in the Curie temperature of Mn-doped III-V semiconductors.
dc.description4 Pages, 3 Figures[1 EPS and 2 JPG files], RevTeX4
dc.identifierhttps://arxiv.org/abs/physics/0503009
dc.identifierhttp://arxiv.org/abs/physics/0503009
dc.identifierPhysical Review B 73, 075210 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.075210
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98013
dc.subjectAtomic and Molecular Clusters
dc.titleLarge Magnetic Moments of Arsenic-Doped Mn Clusters and their Relevance to Mn-Doped III-V Semiconductor Ferromagnetism
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