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Magneto-optical properties of Co/Ir superstructures on Ir(111)
Max-Planck-Institut für Mikrostrukturphysik.ORCID iD: 0000-0003-4075-7385
Vienna University of Technology, AC²T research GmbH - Austrian Center of Competence for Tribology, Viktor-Kaplan-Straße 2 D, 2700 Wiener Neustadt.
Vienna University of Technology, Max-Planck-Institut für Mikrostrukturphysik.
2011 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 84, no 1, article id 14419Article in journal (Refereed) Published
Abstract [en]

The fully relativistic spin-polarized screened Korringa-Kohn-Rostoker method is used to evaluate the electronic and magnetic structure as well as the optical conductivity of (ComIrm)n superstructures on Ir(111). By mapping the microscopic optical conductivity tensor onto the macroscopic permittivity tensor and by using the so-called 2×2 matrix technique the surface reflectivity matrices for these systems are then calculated, from which in turn the Kerr rotation and ellipticity angles can be determined. It is found (i) that when varying at a given value of m the number of repetitions n, these angles are linearly proportional to the total magnetic moment, and (ii) that at a frequency of about 3.8 eV the Kerr rotation angles have the largest value, the corresponding maximum being mainly caused by the Ir spacer layers. The optical properties of the free surface of Ir(111), which is considered to check the applied theoretical schemes, turn out to be in good agreement with existing experimental data.

Place, publisher, year, edition, pages
2011. Vol. 84, no 1, article id 14419
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Other Physics Topics
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Tillämpad fysik
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URN: urn:nbn:se:ltu:diva-9496DOI: 10.1103/PhysRevB.84.014419Local ID: 824978c5-03ff-412d-9237-4867d4b6dbaaOAI: oai:DiVA.org:ltu-9496DiVA, id: diva2:982434
Note
Upprättat; 2011; 20150907 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Etz, Corina

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