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Berlin 2015 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 49: POSTER II

MA 49.27: Poster

Donnerstag, 19. März 2015, 15:00–18:00, Poster A

Magnetic dichroism study on Mn3+xCo1−xGa thin film using a ombination of X-ray absorption and photoemission spectroscopy — •Siham Ouardi1, Takahide Kubota2, Gerhard H. Fecher1, Stanislav Chadov1, Shigemi Mizukami2, Tetsuya Nakamura3, Eiji Ikenaga3, Shigenori Ueda3, 4, and Claudia Felser11Max Planck Institute for Chemical Physics of Solids, Dresden, Germany. — 2WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan — 3Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo, Japan — 4National Institute for Materials Science, SPring-8, Hyogo, Japan

Using circularly and linearly polarised radiation and a combination of bulk-sensitive hard X-ray photoelectron spectroscopy and X-ray-absorption spectroscopy (XAS) we studied the electronic and magnetic structure of epitaxial Mn3−xCo1+xGa thin films. Element-specific magnetic moments and spin-resolved partial densities of states were determined by using XAS and XMCD. The valence states were investigated by using linear dichroism in the angular distribution and comparing the results to spin-resolved densities of states based on a first-principles analysis with fully relativistic Korringa-Kohn-Rostoker calculations.

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