21. Monitoring of chemical processes at the atomic level by X-ray absorption spectrometry using extremely bright synchrotron radiation sourcesIztok 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: 1390; Prenosov: 0 Gradivo ima več datotek! Več... |
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24. Topological properties and self-energy effects in elemental YbPolina M. Sheverdyaeva, F. Offi, Sandra Gardonio, Luka Novinec, M. I. Trioni, D. Ceresoli, S. Iacobucci, A. Ruocco, Giovanni Stefani, L. Petaccia, 2021, izvirni znanstveni članek Ključne besede: electronic structure, topological materials, lanthanides, angle-resolved photoemission spectroscopy Objavljeno v RUNG: 03.12.2021; Ogledov: 1785; Prenosov: 38 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
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26. Paramagnetic intrinsic point defects in alkali phosphate glasses : unraveling the P[sub]3 center origin and local environment effectsLuigi Giacomazzi, Nikita S. Shcheblanov, Layla Martin-Samos, Mikhail E. Povarnitsyn, Shinji Kohara, Matjaž Valant, Nicolas Richard, Nadege Ollier, 2021, izvirni znanstveni članek Ključne besede: oxygen, electron paramagnetic resonance spectroscopy, phosphates, amorphous materials, defects Objavljeno v RUNG: 04.05.2021; Ogledov: 2736; Prenosov: 0 Gradivo ima več datotek! Več... |
27. Action Learning Sets - EmindS Training MaterialsPetroula 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: 2258; Prenosov: 0 Gradivo ima več datotek! Več... |
28. Structural and CO [sub] 2 capture properties of ethylenediamine-modified HKUST-1 metal-organic frameworkNika Vrtovec, Matjaž Mazaj, Gianpiero Buscarino, Angela Terracina, S. Agnello, Iztok Arčon, Janez Kovač, Nataša Zabukovec Logar, 5, izvirni znanstveni članek Ključne besede: functionalization, modification, adsorption, extended X-ray absorption fine structure, materials Objavljeno v RUNG: 17.10.2020; Ogledov: 2684; Prenosov: 0 |
29. Morphological diversity in nanoporous covalent organic materials derived from viologen and pyreneGobinda Das, Tina Škorjanc, Sudhir Kumar Sharma, Thirumurugan Prakasam, Carlos Platas-Iglesias, Dong Suk Han, Jesus Raya, John-Carl Olsen, Ramesh Jagannathan, Ali Trabolsi, izvirni znanstveni članek Ključne besede: covalent organic polymers, hollow tube, polymers, porous materials, iodine capture Objavljeno v RUNG: 02.09.2020; Ogledov: 2613; Prenosov: 0 Gradivo ima več datotek! Več... |
30. Element-resolved study on the influence of a magnetic dopant on the exchange interaction in FePt on ultrashort timescalesJurij 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: 3109; Prenosov: 0 |