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Investigation of the electronic properties of MXene thin films : written report
Lea Gelo, 2024, research project (high school)

Keywords: MXene thin films, electronic properties
Published in RUNG: 02.07.2024; Views: 196; Downloads: 0
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Shaping the electronic collection Letters : discovering epistolary exchange and navigating correspondence metadata
Darko Ilin, Katja Mihurko, Ivana Zajc, Mila Marinković, 2023, published scientific conference contribution abstract

Keywords: Electronic Collection LETTERS, Distant Reading, Correspondence, Metadata
Published in RUNG: 09.11.2023; Views: 910; Downloads: 4
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Body Borders in _Arts : The Kinaesthetic Self in Performative_ the Social Self in Participatory_ The Electronic Self in Media_
Peter Purg, 2022, unpublished conference contribution

Keywords: body, border, art, participation, electronic
Published in RUNG: 16.02.2023; Views: 1196; Downloads: 0
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Orbital selective dynamics in Fe-pnictides triggered by polarized pump pulse excitations
Ganesh Adhikary, Tanusree Saha, Primož Rebernik Ribič, Matija Stupar, Barbara Ressel, Jurij Urbančič, Giovanni De Ninno, A. Thamizhavel, Kalobaran Maiti, 2021, original scientific article

Abstract: Quantum materials display exotic behaviours related to the interplay between temperature-driven phase transitions. Here, we study the electron dynamics in one such material, CaFe$_2$As$_2$, a parent Fe-based superconductor, employing time and angle-resolved photoemission spectroscopy. CaFe$_2$As$_2$ exhibits concomitant transition to spin density wave state and tetragonal to orthorhombic structure below 170 K. The Fermi surface of this material consists of three hole pockets ($\alpha$, $\beta$ and $\gamma$) around $\Gamma$-point and two electron pockets around $X$-point. The hole pockets have $d_{xy}$, $d_{yz}$ and $d_{zx}$ orbital symmetries. The $\beta$ band constituted by $d_{xz}$/$d_{yz}$ orbitals exhibit a gap across the magnetic phase transition. We discover that polarized pump pulses can induce excitations of electrons of a selected symmetry. More specifically, while $s$-polarized light (polarization vector perpendicular to the $xz$-plane) excites electrons corresponding to all the three hole bands, $p$-polarized light excites electrons essentially from ($\alpha$,$\beta$) bands which are responsible for magnetic order. Interestingly, within the magnetically ordered phase, the excitation due to the $p$-polarized pump pulses occur at a time scale of 50 fs, which is significantly faster than the excitation induced by $s$-polarized light ($\sim$ 200 fs). These results suggest that the relaxation of different ordered phases occurs at different time scales and this method can be used to achieve selective excitations to disentangle complexity in the study of quantum materials.
Keywords: Electronic structure, Pnictides and chalcogenides, Time-resolved spectroscopy
Published in RUNG: 13.10.2021; Views: 2155; Downloads: 6
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