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Structural relaxation and magnetic anisotropy: Co wire at the Pt(111) step edge
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Theoretical Magnetism.
2006 (English)In: CZECHOSLOVAK JOURNAL OF PHYSICS, ISSN 0011-4626, Vol. 56, no 1, 51- p.Article in journal (Refereed) Published
Abstract [en]

First principles calculations are used to investigate a monatomic Co chain at the Pt(111) surface step edge. We optimize the system geometry minimizing the atomic forces and evaluate the magnetocrystalline anisotropy energy (MAE). The easy magnetization axis is found to align perpendicular to the Co-wire at an angle of approximate to 50 degrees (A-step) and approximate to 30 degrees (B-step) towards the Pt step and the calculated MAE of 2.8 meV (A-step) and 4.45 meV (B-step) are in good agreement with experiment. Our calculations show that the structural relaxation improves the quantitative description of the MAE.

Place, publisher, year, edition, pages
2006. Vol. 56, no 1, 51- p.
Keyword [en]
magnetocrystalline anisotropy, nanocrystalline materials, ferromagnetism, surface
Identifiers
URN: urn:nbn:se:uu:diva-19351DOI: doi:10.1007/s10582-006-0065-yOAI: oai:DiVA.org:uu-19351DiVA: diva2:47123
Available from: 2006-11-28 Created: 2006-11-28 Last updated: 2011-01-11

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Publisher's full texthttp://www.springerlink.com/content/0628l1825744g457

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Oppeneer, Peter

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