Blar i NTNU Open på forfatter "Bakkelund, Johannes"
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Disentangling electron-boson interactions on the surface of a familiar ferromagnet
Røst, Håkon; Mazzola, Federico; Bakkelund, Johannes; Åsland, Anna Cecilie; Hu, Jinbang; Cooil, Simon Phillip; Polley, Craig; Wells, Justin William (Peer reviewed; Journal article, 2024)We report energy renormalizations from electron-phonon and electron-magnon interactions in spin minority surface resonances on Ni(111). The different interactions are identified, disentangled, and quantified from the ... -
Enhanced hydrophobicity of CeO2 thin films: Role of the morphology, adsorbed species and crystallography
Mamedov, Damir; Åsland, Anna Cecilie; Cooil, Simon Phillip; Røst, Håkon; Bakkelund, Johannes; Allaniyazov, Atabek; Wells, Justin William; Karazhanov, Smagul (Peer reviewed; Journal article, 2023)In order to guarantee the long-term efficiency of hydrophobic materials in real-world situations, it is necessary that their surfaces are highly resistant to scratching, fouling and misting. Furthermore, for the specific ... -
Investigating spin-split surface states on semimetals and correlation effects in a ferromagnet
Bakkelund, Johannes (Master thesis, 2022)Denne avhandlingen består av en samling av fire prosjekter, hvor hver kombinerer en eksperimentell og teoretisk fremgangsmåte. Prosjektene er hovedsakelig basert på de samme eksperimentelle teknikkene, fotoemisjonsspektroskopi, ... -
One-dimensional spin-polarized surface states: A comparison of Bi(112) with other vicinal bismuth surfaces
Åsland, Anna Cecilie; Bakkelund, Johannes; Thingstad, Even; Røst, Håkon; Cooil, Simon Phillip; Hu, Jinbang; Vobornik, Ivana; Fujii, Jun; Sudbø, Asle; Wells, Justin William; Mazzola, Federico (Peer reviewed; Journal article, 2023)Vicinal surfaces of bismuth are unique test beds for investigating one-dimensional (1D) spin-polarized surface states that may one day be used in spintronic devices. In this paper, such states have been observed for the ...