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DPG

Berlin 2005 – scientific programme

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MA: Magnetismus

MA 20: Poster:Schichten(1-29),Spintrsp(30-45),Ex-Bias(46-63),Spindyn(64-75),Mikromat.(76-80),Cluster(81-94),Abbv.(95-99),Obflm(100-02),SpElek.(103-09),E-Theo(110-14),Mikromag.(115-16),Spin+PÜ(117-26),Mag.Mat.(127-51),Meth.(152-55),Mol.Mag(156-59),Kondo(160-65

MA 20.112: Poster

Monday, March 7, 2005, 14:00–18:00, Poster TU C

XMCD studies of magnetic properties of ZrZn2 — •Sergey Mankovsky1, Hubert Ebert1, Fabrice Wilhelm2, and Andrej Rogalev21Dept. Chemie und Biochemie, Universität München, Butenandtstr. 5-13, D-81377 München, Germany — 2ESRF, B.P.220, 38043 Grenoble, France

The ZrZn2 weak ferromagnet attracts the attention for last few years due to coexistence in it of ferromagnetism and superconductivity on the one side and due to its very interesting magnetic properties on another. The magnetic properties of this compound have been studied using the X-ray magnetic circular dichroism (XMCD) method, which allows to probe locally the spin and orbital magnetic moments and therefore is a very efficient tool for studies of complex magnetic materials. The XMCD spectra of ZrZn2 have been measured at the L2,3 ages of Zr. The experiments have been performed both without and in the presence of external magnetic field to study the field-dependent behaviors of spin and orbital magnetic moments. To interpret the experimental results, they are accompanied by SPR-KKR calculations of electronic structure and XMCD spectra of a compound under investigation. An analysis of the XMCD spectra of ZrZn2 is done also in comparison with the spectra obtained for ZrFe2.

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