Published March 21, 2007
| Version v1
Journal article
Huge quadratic magneto-optical Kerr effect and magnetization reversal in the Co2FeSi Heusler compound
Creators
- 1. Fachbereich Physik and Forschungsschwerpunkt MINAS, Technische Universitaet Kaiserslautern, Erwin-Schroedinger-Strasse 56, D-67663 Kaiserslautern (Germany)
- 2. Institut fuer Physik, Johannes Gutenberg-Universitaet Mainz, Staudinger Weg 7, D-55128 Mainz (Germany)
- 3. Department of Physics, Technical University of Ostrava, 17. Listopadu 15, 708 33, Ostrava-Poruba (Czech Republic)
- 4. Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-Universitaet Mainz, Staudingerweg 9, D-55128 Mainz (Germany)
Description
Co2FeSi(1 0 0) films with L21 structure deposited onto MgO(1 0 0) were studied using both the longitudinal and quadratic (QMOKE) magneto-optical Kerr effect. The films exhibit a huge QMOKE signal with a maximum contribution of up to 30 mdeg, which is the largest QMOKE signal in reflection that has been measured thus far. This large value is a fingerprint of an exceptionally large spin-orbit coupling of second or higher order. The Co2FeSi(1 0 0) films exhibit a rather large coercivity of 350 Oe and 70 Oe for film thicknesses of 22 nm and 98 nm, respectively. Despite the fact that the films are epitaxial, they do not provide an angular dependence of the anisotropy and the remanence in excess of 1% and 2%, respectively
Additional details
Identifiers
- DOI
- 10.1088/0022-3727/40/6/S09;
- PII
- S0022-3727(07)34683-4;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 40
- Journal Issue
- 6
- Journal Page Range
- p. 1563-1569
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38085946
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; COBALT ALLOYS; COERCIVE FORCE; EPITAXY; HEUSLER ALLOYS; IRON ALLOYS; KERR EFFECT; L-S COUPLING; MAGNESIUM OXIDES; MAGNETIZATION; MAGNETO-OPTICAL EFFECTS; SIGNALS; SILICON ALLOYS; THICKNESS; THIN FILMS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; ALUMINIUM ALLOYS; CHALCOGENIDES; COPPER ALLOYS; COPPER BASE ALLOYS; CORROSION RESISTANT ALLOYS; COUPLING; CRYSTAL GROWTH METHODS; DIELECTRIC PROPERTIES; DIMENSIONS; ELECTRICAL PROPERTIES; FILMS; INTERMEDIATE COUPLING; MAGNESIUM COMPOUNDS; MANGANESE ALLOYS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT ALLOYS