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Magnetic materials : GIAN Course 2022. Course name: Functional Materials
Blaž Belec, invited lecture at foreign university

Keywords: magnetic materials, nanomaterials, permanent magnets
Published in RUNG: 28.02.2022; Views: 1005; Downloads: 0
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Element-resolved study on the influence of a magnetic dopant on the exchange interaction in FePt on ultrashort timescales
Jurij Urbančič, 2017, published scientific conference contribution abstract

Abstract: In this study, we investigate the optically induced ultrafast demagnetization dynamics of a FePt alloy doped with Mn atoms on the characteristic timescale of the exchange interaction of a few femtoseconds. We use high harmonic generation with photon energies in the XUV to gain elemental resolution in a femtosecond magneto-optical Kerr-effect experiment [1] in transversal geometry. Following up on earlier experiments, which showed the importance of the exchange interaction in the demagnetization process in alloys [2,3], we see clear differences in the dynamical responses of the three elements Fe, Pt, and Mn. Our results suggest, that the exchange coupling between the magnetic moments of the FePt alloy and the Mn dopant changes on ultrashort timescales.
Keywords: FePt, High Harmonic Generation, Laser, Magnetic Materials
Published in RUNG: 22.05.2020; Views: 2556; Downloads: 0

Combining hard and soft magnetic phases by mechanical mixing
Blaž Belec, Cesar De Jilian Fernandez, Daniela Bertoni, other performed works

Keywords: Magnetic materials Magnetodipolar interactions lorenz microscopy
Published in RUNG: 12.02.2019; Views: 2949; Downloads: 0
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