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Träfflista för sökning "WFRF:(B Klautau Angela) srt2:(2010-2014)"

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1.	Bezerra-Neto, Manoel M., et al. (author) Complex magnetic structure of clusters and chains of Ni and Fe on Pt(111) 2013 In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 3, s. 3054- Journal article (peer-reviewed)abstract We present an approach to control the magnetic structure of adatoms adsorbed on a substrate having a high magnetic susceptibility. Using finite Ni-Pt and Fe-Pt nanowires and nanostructures on Pt(111) surfaces, our ab initio results show that it is possible to tune the exchange interaction and magnetic configuration of magnetic adatoms (Fe or Ni) by introducing different numbers of Pt atoms to link them, or by including edge effects. The exchange interaction between Ni (or Fe) adatoms on Pt(111) can be considerably increased by introducing Pt chains to link them. The magnetic ordering can be regulated allowing for ferromagnetic or antiferromagnetic configurations. Noncollinear magnetic alignments can also be stabilized by changing the number of Pt-mediated atoms. An Fe-Pt triangularly-shaped nanostructure adsorbed on Pt(111) shows the most complex magnetic structure of the systems considered here: a spin-spiral type of magnetic order that changes its propagation direction at the triangle vertices.
2.	Ganguly, Shreemoyee, et al. (author) Augmented space recursion formulation of the study of disordered alloys with noncollinear magnetism and spin-orbit coupling : Application to MnPt and Mn3Rh 2011 In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 83:9, s. 094407- Journal article (peer-reviewed)abstract We have developed a formalism by combining the tight binding linearized muffin-tin orbital and the recursion methods with the augmented space formalism (TB-LMTO-ASR) to study noncollinear magnetism in disordered alloys. We apply the TB-LMTO-ASR to study disordered MnPt and Mn3Rh alloys. The electronic structures of these alloys in different magnetic structures have been calculated and compared to the previous theoretical results.

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Type of publication: journal article (2)

Type of content: peer-reviewed (2)

Author/Editor: Eriksson, Olle (2); Sanyal, Biplab (2); Bergman, Anders (2); Klautau, Angela B. (2); Mookerjee, Abhijit (1); Bezerra-Neto, Manoel ... (1); show more...; Ribeiro, Marcelo S. (1); Muniz, Roberto B. (1); Costa, Marcio (1); Ganguly, Shreemoyee (1); show less...

University: Uppsala University (2)

Language: English (2)

Research subject (UKÄ/SCB): Natural sciences (1)

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