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Magnetic anisotropy of single Co atom on CuN surface
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SYSNO ASEP 0326808 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Magnetic anisotropy of single Co atom on CuN surface Title Magnetická anizotropie atomu Co na povrchu CuN Author(s) Shick, Alexander (FZU-D) RID, ORCID
Máca, František (FZU-D) RID, ORCID
Lichtenstein, A.I. (DE)Source Title Journal of Applied Physics. - : AIP Publishing - ISSN 0021-8979
Roč. 105, č. 7 (2009), 07C309/1-07C309/3Number of pages 3 s. Language eng - English Country US - United States Keywords magnetic anisotropy energy ; first principle calculations ; cobalt ; CuN Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GC202/07/J047 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000266633500420 DOI https://doi.org/10.1063/1.3072475 Annotation The magnetic anisotropy energy for a single Co atom on CuN/Cu(001) surface is investigated making use of the first-principles relativistic local spin density approximation (LSDA) calculations and the torque method. A single-ion character of the magnetic anisotropy is revealed, which originates mainly from the local magnetic moment of the Co atom. The effect of the orbital polarization beyond that given by the LSDA is studied making use of the different flavors of the LDA+U method. It is shown that the LDA+U induced orbital polarization affects the orbital component of the magnetic moment for different directions of the Co-atom magnetization and can modify substantially the magnetic anisotropy energy. Comparison with the available experimental data is discussed. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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