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First-principles studies of complex magnetism in Mn nanostructures on the Fe(001) surface
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
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2012 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 85, no 1, 014436- p.Article in journal (Refereed) Published
Abstract [en]

The magnetic properties of Mn nanostructures on the Fe(001) surface have been studied using the noncollinear first-principles real space-linear muffin-tin orbital-atomic sphere approximation method within density-functional theory. We have considered a variety of nanostructures such as adsorbed wires, pyramids, and flat and intermixed clusters of sizes varying from two to nine atoms. Our calculations of interatomic exchange interactions reveal the long-range nature of exchange interactions between Mn-Mn and Mn-Fe atoms. We have found that the strong dependence of these interactions on the local environment, the magnetic frustration, and the effect of spin-orbit coupling lead to the possibility of realizing complex noncollinear magnetic structures such as helical spin spiral and half-skyrmion.

Place, publisher, year, edition, pages
2012. Vol. 85, no 1, 014436- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-169358DOI: 10.1103/PhysRevB.85.014436ISI: 000299868400003OAI: oai:DiVA.org:uu-169358DiVA: diva2:506842
Available from: 2012-03-01 Created: 2012-02-28 Last updated: 2012-03-01Bibliographically approved

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Sanyal, Biplab
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