Phys. Rev. B 75, 214433 (2007) [10 pages]Emergence of noncollinear magnetic ordering in small magnetic clusters: Mnn and As@MnnSee Also: Publisher's Note Received 21 December 2006; revised 16 April 2007; published 29 June 2007; publisher error corrected 12 July 2007 Using first-principles density functional calculations, we have studied the magnetic ordering in pure Mnn (n=2–10,13,15,19) and As@Mnn (n=1–10) clusters. Although, for both pure and doped manganese clusters, there exists many collinear and noncollinear isomers close in energy, the smaller clusters with n⩽5 have collinear magnetic ground states and the emergence of noncollinear ground states is seen for n⩾6 clusters. Due to strong p-d hybridization in As@Mnn clusters, the binding energy is substantially enhanced and the magnetic moment is reduced compared to the corresponding pure Mnn clusters. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.75.214433
DOI:
10.1103/PhysRevB.75.214433
PACS:
75.75.+a, 36.40.Cg, 61.46.Bc, 73.22.−f
See AlsoPublisher's Note: Mukul Kabir, D. G. Kanhere, and Abhijit Mookerjee, Publisher's Note: Emergence of noncollinear magnetic ordering in small magnetic clusters: Mnn and As@Mnn [Phys. Rev. B 75, 214433 (2007)], Phys. Rev. B 76, 019901 (2007). |
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