Repozitorij Univerze v Novi Gorici

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21.
Monitoring of chemical processes at the atomic level by X-ray absorption spectrometry using extremely bright synchrotron radiation sources
Iztok Arčon, predavanje na tuji univerzi

Opis: X-ray absorption spectroscopy (XAS) is a powerful tool for characterisation of local structure and chemical state of selected elements in different new functional materials and biological or environmental samples. The XAS spectroscopy is based on extremely bright synchrotron radiation X-rays sources, which allow precise characterisation of bulk, nanostructured or highly diluted samples. The rapid development of extremely bright synchrotron sources of X-ray and ultraviolet light in recent years has opened new possibilities for research of matter at the atomic or molecular level, indispensable in the development of new functional nanostructured materials with desired properties. The lecture will present the possibilities offered by X-ray absorption spectroscopy with synchrotron light for ex-situ and in-situ or operando characterization of various functional porous and other nanomaterials before, after and during their operation.
Ključne besede: XAS, operando XANES, EXAFS, functional materials
Objavljeno v RUNG: 01.06.2022; Ogledov: 1261; Prenosov: 0
Gradivo ima več datotek! Več...

22.
Magnetic materials : GIAN Course 2022. Course name: Functional Materials
Blaž Belec, predavanje na tuji univerzi

Ključne besede: magnetic materials, nanomaterials, permanent magnets
Objavljeno v RUNG: 28.02.2022; Ogledov: 1396; Prenosov: 0
Gradivo ima več datotek! Več...

23.
Characterization of materials : GIAN Course 2022. Course name: Functional Materials
Blaž Belec, predavanje na tuji univerzi

Ključne besede: materials characterization
Objavljeno v RUNG: 28.02.2022; Ogledov: 1316; Prenosov: 0
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CHARACTERIZATION OF BIOCOMPOSITE MATERIALS BY PHOTOTHERMAL BEAM DEFLECTION SPECTROMETRY
Hanna Budasheva, Patricia Cazon Diaz, Dorota Korte, Mladen Franko, Chieu D TRAN, prispevek na konferenci brez natisa

Ključne besede: EAM DEFLECTION SPECTROMETRY, BIOCOMPOSITE MATERIALS, porosity
Objavljeno v RUNG: 02.12.2021; Ogledov: 1718; Prenosov: 0
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Action Learning Sets - EmindS Training Materials
Petroula Mavrkiou, Peter Purg, Kirsi Maasalo, Dimitrios Doukas, Haris Tsitouras, Maria Koutiva, Christiana Knais, univerzitetni, visokošolski ali višješolski učbenik z recenzijo

Ključne besede: action learning, materials, entrepreneurship, interdisciplinary, entrecomp
Objavljeno v RUNG: 05.01.2021; Ogledov: 2134; Prenosov: 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, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: 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.
Ključne besede: FePt, High Harmonic Generation, Laser, Magnetic Materials
Objavljeno v RUNG: 22.05.2020; Ogledov: 2950; Prenosov: 0

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