Ymir Kalmann Frodason

• Mukhopadhyay, Partha; Hatipoglu, Isa; Frodason, Ymir Kalmann; Varley, Joel Basile; Williams, Martin S. & Hunter, Daniel A. [Vis alle 13 forfattere av denne artikkelen] (2022). Role of defects in ultra-high gain in fast planar tin gallium oxide UV-C photodetector by MBE. Applied Physics Letters. ISSN 0003-6951. 121(11). doi: 10.1063/5.0107557.
• Langørgen, Amanda; Zimmermann, Christian; Frodason, Ymir Kalmann; Førdestrøm Verhoeven, Espen; Weiser, Philip Michael & Karsthof, Robert Michael [Vis alle 8 forfattere av denne artikkelen] (2022). Influence of heat treatments in H 2 and Ar on the E <inf>1</inf>center in β -Ga<inf>2</inf>O<inf>3</inf>. Journal of Applied Physics. ISSN 0021-8979. 131(11). doi: 10.1063/5.0083861.
• Frodason, Ymir Kalmann; Zimmermann, Christian; Verhoeven, Espen Førdestrøm; Weiser, Philip Michael; Vines, Lasse & Varley, Joel B (2021). Multistability of isolated and hydrogenated Ga-O divacancies in beta-Ga2O3. PHYSICAL REVIEW MATERIALS. ISSN 2475-9953. 5. doi: 10.1103/PhysRevMaterials.5.025402. Fulltekst i vitenarkiv
• Reinertsen, Vilde Mari; Weiser, Philip Michael; Frodason, Ymir Kalmann; Bathen, Marianne Etzelmüller; Vines, Lasse & Johansen, Klaus Magnus H (2020). Anisotropic and trap-limited diffusion of hydrogen/deuterium in monoclinic gallium oxide single crystals. Applied Physics Letters. ISSN 0003-6951. 117. doi: 10.1063/5.0027333. Fulltekst i vitenarkiv
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Vines, Lasse & Varley, J.B. (2020). Self-trapped hole and impurity-related broad luminescence in β-Ga2O3. Journal of Applied Physics. ISSN 0021-8979. 127(7). doi: 10.1063/1.5140742. Fulltekst i vitenarkiv
• Borgersen, Jon; Vines, Lasse; Frodason, Ymir Kalmann; Kuznetsov, Andrej; von Wenckstern, Holger & Grundmann, Marius [Vis alle 9 forfattere av denne artikkelen] (2020). Experimental exploration of the amphoteric defect model by cryogenic ion irradiation of a range of wide band gap oxide materials. Journal of Physics: Condensed Matter. ISSN 0953-8984. 32(50). doi: 10.1088/1361-648X/abac8b. Fulltekst i vitenarkiv
• Zimmermann, Christian; Frodason, Ymir Kalmann; Rønning, Vegard; Varley, Joel B & Vines, Lasse (2020). Combining steady-state photo-capacitance spectra with first-principles calculations: the case of Fe and Ti in β-Ga2O3. New Journal of Physics. ISSN 1367-2630. 22. doi: 10.1088/1367-2630/ab8e5b. Fulltekst i vitenarkiv
• Zimmermann, Christian; Frodason, Ymir Kalmann; Barnard, Abraham Willem; Varley, Joel B; Irmscher, Klaus & Galazka, Zbigniew [Vis alle 10 forfattere av denne artikkelen] (2020). Ti- and Fe-related charge transition levels in beta-Ga2O3. Applied Physics Letters. ISSN 0003-6951. 116(7). doi: 10.1063/1.5139402. Fulltekst i vitenarkiv
• Zimmermann, Christian; Rønning, Vegard; Frodason, Ymir Kalmann; Bobal, Viktor; Varley, Joel B & Vines, Lasse (2020). Primary intrinsic defects and their charge transition levels in beta-Ga2O3. PHYSICAL REVIEW MATERIALS. ISSN 2475-9953. 4(7). doi: 10.1103/PhysRevMaterials.4.074605. Fulltekst i vitenarkiv
• Zimmermann, Christian; Verhoeven, Espen Førdestrøm; Frodason, Ymir Kalmann; Weiser, Philip Michael; Varley, Joel B & Vines, Lasse (2020). Formation and control of the E2* center in implanted b-Ga2O3 by reverse-bias and zero-bias annealing. Journal of Physics D: Applied Physics. ISSN 0022-3727. 53(46). doi: 10.1088/1361-6463/aba64d. Fulltekst i vitenarkiv
• Aarholt, Thomas; Frodason, Ymir Kalmann & Prytz, Øystein (2020). Imaging defect complexes in scanning transmission electron microscopy: Impact of depth, structural relaxation, and temperature investigated by simulations. Ultramicroscopy. ISSN 0304-3991. 209. doi: 10.1016/j.ultramic.2019.112884. Fulltekst i vitenarkiv
• Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Müting, Johanna; Ayedh, Hussein Mohammed Hussein; Grossner, Ulrike & Coutinho, José [Vis alle 8 forfattere av denne artikkelen] (2019). Electrical charge state identification and control for the silicon vacancy in 4H-SiC. npj Quantum Information. ISSN 2056-6387. 5(1), s. 1–9. doi: 10.1038/s41534-019-0227-y. Fulltekst i vitenarkiv
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Galeckas, Augustinas & Vines, Lasse (2019). Broad luminescence from donor-complexed LiZn and NaZn acceptors in ZnO. Physical review B (PRB). ISSN 2469-9950. 100(18). doi: 10.1103/PhysRevB.100.184102. Fulltekst i vitenarkiv
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Alkauskas, A & Vines, Lasse (2019). Negative- U and polaronic behavior of the Zn-O divacancy in ZnO. Physical review B (PRB). ISSN 2469-9950. 99(17), s. 1–7. doi: 10.1103/PhysRevB.99.174106.
• Bathen, Marianne Etzelmüller; Coutinho, José; Ayedh, Hussein Mohammed Hussein; Hassan, Jawad U; Farkas, Ildiko & Öberg, Sven [Vis alle 9 forfattere av denne artikkelen] (2019). Anisotropic and plane-selective migration of the carbon vacancy in SiC: Theory and experiment. Physical review B (PRB). ISSN 2469-9950. 100(1), s. 014103-1–014103-15. doi: 10.1103/PhysRevB.100.014103. Fulltekst i vitenarkiv
• Sky, Thomas Neset; Johansen, Klaus Magnus H; Frodason, Ymir Kalmann; Aarholt, Thomas; Riise, Heine Nygard & Prytz, Øystein [Vis alle 8 forfattere av denne artikkelen] (2019). Diffusion of indium in single crystal zinc oxide: a comparison between group III donors. Semiconductor Science and Technology. ISSN 0268-1242. 34(2), s. 1–6. doi: 10.1088/1361-6641/aafa4c. Fulltekst i vitenarkiv
• Sky, Thomas Neset; Johansen, Klaus Magnus H; Frodason, Ymir Kalmann; Svensson, Bengt Gunnar & Vines, Lasse (2018). The interaction between lithium acceptors and gallium donors in zinc oxide. Journal of Applied Physics. ISSN 0021-8979. 124(24), s. 1–6. doi: 10.1063/1.5063326. Fulltekst i vitenarkiv
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Bjørheim, Tor Svendsen; Svensson, Bengt Gunnar & Alkauskas, Audrius (2018). Zn vacancy-donor impurity complexes in ZnO. Physical review B (PRB). ISSN 2469-9950. 97(10), s. 1–8. doi: 10.1103/PhysRevB.97.104109.
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Bjørheim, Tor Svendsen; Svensson, Bengt Gunnar & Alkauskas, Audrius (2017). Zn vacancy as a polaronic hole trap in ZnO. Physical review B (PRB). ISSN 2469-9950. 95(9). doi: 10.1103/PhysRevB.95.094105.

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• Frodason, Ymir Kalmann; Krzyzaniak, Patryk Piotr; Vines, Lasse; Varley, Joel Basile; Van de Walle, Chris G. & Johansen, Klaus Magnus H (2022). Ga vacancy-mediated diffusion of Sn donors in β-Ga2O3.
• Frodason, Ymir Kalmann; Varley, Joel Basile; Johansen, Klaus Magnus H; Vines, Lasse & Van de Walle, Chris G. (2022). Strongly anisotropic migration of the Ga vacancy in ß-Ga2O3.
• Hommedal, Ylva Knausgård; Frodason, Ymir Kalmann; Vines, Lasse & Johansen, Klaus Magnus H (2022). Dynamic interaction of Zn and intrinsic defects in beta-Ga2O3.
• Hommedal, Ylva Knausgård; Frodason, Ymir Kalmann; Vines, Lasse & Johansen, Klaus Magnus H (2022). Diffusion of Zn in beta-Ga2O3.
• Hommedal, Ylva Knausgård; Frodason, Ymir Kalmann; Vines, Lasse & Johansen, Klaus Magnus H (2022). Zn diffusion in 𝛽-Ga2O3 using SIMS.
• Olsen, Vegard Skiftestad; Øversjøen, Vetle; Frodason, Ymir Kalmann; Cooil, Simon; Lee, In-Hwan & Vines, Lasse [Vis alle 7 forfattere av denne artikkelen] (2021). Electrical control in ZnSnN2 by tailoring intrinsic and extrinsic defects.
• Zimmermann, Christian; Frodason, Ymir Kalmann; Varley, Joel Basile; Verhoeven, Espen Førdestrøm; Rønning, Vegard & Weiser, Philip Michael [Vis alle 15 forfattere av denne artikkelen] (2021). Identification of Fe-, Ti- and H-related Charge-state Transition Levels in β-Ga2O3.
• Langørgen, Amanda; Karsthof, Robert Michael; Weiser, Philip Michael; Cavani, Olivier; Grasset, Romain & Frodason, Ymir Kalmann [Vis alle 8 forfattere av denne artikkelen] (2021). Steady-state Photocapacitance Spectroscopy of Intrinsic Defects in Electron-Irradiated β-Ga₂O₃.
• Krzyzaniak, Patryk Piotr; Frodason, Ymir Kalmann; Weiser, Philip Michael; Vines, Lasse & Johansen, Klaus Magnus H (2021). Diffusion of donor dopants in β-Ga2O3 and interplay with gallium vacancies.
• Frodason, Ymir Kalmann; Zimmermann, Christian; Verhoeven, Espen Førdestrøm; Weiser, Philip Michael; Vines, Lasse & Varley, Joel Basile (2021). Multistability of Ga-O divacancies in β-Ga2O3.
• Borgersen, Jon; Johansen, Klaus Magnus H; Vines, Lasse; Kuznetsov, Andrej; Frodason, Ymir Kalmann & von Wenckstern, Holger [Vis alle 9 forfattere av denne artikkelen] (2019). Electrical properties of intrinsic defects in wide band gap oxides.
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Galeckas, Augustinas & Vines, Lasse (2019). Optical properties of donor-complexed Li_Zn in ZnO .
• Aarholt, Thomas; Frodason, Ymir Kalmann & Prytz, Øystein (2019). The impact of local relaxation on defect-complex STEM contrast.
• Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Müting, Johanna; Ayedh, Hussein Mohammed Hussein; Grossner, Ulrike & Coutinho, José [Vis alle 8 forfattere av denne artikkelen] (2019). Electrical charge-state identification and emission intensity modulation of the silicon vacancy in 4H-SiC.
• Grini, Sigbjørn; Borgersen, Jon Arthur; Sky, Thomas Neset; Frodason, Ymir Kalmann; Riise, Heine Nygard & Zimmermann, Christian (2018). Omvisning MENA.
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Bjørheim, Tor Svendsen; Vines, Lasse & Svensson, Bengt Gunnar (2018). Hybrid functional study of the Zn-O divacancy in ZnO.
• Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Frodason, Ymir Kalmann; Vines, Lasse & Svensson, Bengt Gunnar (2018). Tuning silicon vacancy formation in 4H-SiC via proton irradiation for quantum technology.
• Bathen, Marianne Etzelmüller; Vines, Lasse; Galeckas, Augustinas; Frodason, Ymir Kalmann & Svensson, Bengt Gunnar (2018). Correlating charge state transitions of the Si vacancy to the S1/S2 peaks in DLTS spectra of n-type 4H-SiC.
• Bathen, Marianne Etzelmüller; Vines, Lasse; Galeckas, Augustinas; Frodason, Ymir Kalmann & Svensson, Bengt Gunnar (2018). Charge state transitions of the silicon vacancy in 4H-SiC: Combined DLTS, PL and DFT study.
• Bergum, Kristin; Borgersen, Jon Arthur; Ellingsen, Josef Gert Åsheim; Frodason, Ymir Kalmann; Galeckas, Augustinas & Ingebrigtsen, Mads Eide [Vis alle 8 forfattere av denne artikkelen] (2017). Omvisning MiNaLab.
• Frodason, Ymir Kalmann; Bergum, Kristin; Sky, Thomas Neset; Ingebrigtsen, Mads Eide; Borgersen, Jon & Ellingsen, Josef Gert Åsheim [Vis alle 8 forfattere av denne artikkelen] (2017). MiNa-Lab tour highlighting LENS activities.
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Bjørheim, Tor Svendsen; Svensson, Bengt Gunnar & Alkauskas, Audrius (2017). Luminescence from Zn vacancy-donor complexes in ZnO.
• Johansen, Klaus Magnus H; Sky, Thomas Neset; Frodason, Ymir Kalmann; Venkatachalapathy, Vishnukanthan; Svensson, Bengt Gunnar & Vines, Lasse (2017). Tailoring donor diffusion in ZnO by defects and doping .
• Johansen, Klaus Magnus H; Sky, Thomas Neset; Vines, Lasse; Frodason, Ymir Kalmann; Riise, Heine Nygard & Bjørheim, Tor Svendsen [Vis alle 7 forfattere av denne artikkelen] (2016). The dynamic interplay between intrinsic defects and shallow donor dopants (Al and Ga) in ZnO.
• Johansen, Klaus Magnus H; Frodason, Ymir Kalmann; Tuomisto, Filip; Makkonen, Ilja & Vines, Lasse (2016). Formation of Zn- and O-vacancy Clusters in ZnO by thermal treatment .
• Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Bjørheim, Tor Svendsen; Alkauskas, A & Svensson, Bengt Gunnar (2016). Polaronic hole binding by the Zn vacancy in ZnO.
• Johansen, Klaus Magnus H; Sky, Thomas Neset; Vines, Lasse; Frodason, Ymir Kalmann; Riise, Heine Nygard & Bjørheim, Tor Svendsen [Vis alle 7 forfattere av denne artikkelen] (2015). The Interplay between Ga Dopants and Intrinsic Defects in ZnO - Seen from the Diffusion Perspective .
• Frodason, Ymir Kalmann (2020). Hybrid functional investigationsof point defects in ZnO and. Universitetet i Oslo. ISSN 1501-7710.

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