From collinear to vortex magnetic structures in Mn corrals on Pt(111)

Abstract

We study the magnetic properties of small Mn ring shaped clusters on a Pt(111) surface in the framework of density functional theory. We find that the Mn atoms possess large magnetic moments, of the order of 4uB/atom, and have dominating antiferromagnetic interatomic exchange interactions. A quantum confinement effect within the ring like clusters was found, indicating that even very small clusters can be seen as quantum corrals. The antiferromagnetic exchange couplings lead to collinear magnetic arrangements in simple corrals, as well as complex non-collinear ordering, as vortex-like structures, for the case of corrals with particular geometry where antiferromagnetism becomes frustrated.

Accepted for publication as a Regular Article in Physical Review B (2010)

References in corpus (4)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Octupolar ordering of classical kagome antiferromagnets in two and three dimensions
• Magnetic structure of Fe, Mn, and Cr clusters supported on Cu(111)
• First principles calculation of spin-interactions and magnetic ground states of Cr trimers on Au(111)

Cited by in corpus (4)

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• Design of Magnetic Textures of Ad-Nanocorrals with an Extra Adatom
• Unraveling the connection between high-order magnetic interactions and local-to-global spin Hamiltonian in non-collinear magnetic dimers