Kristoffer Eggestad
Om
Kristoffer Eggestad er stipendiat i forskiningsgruppen Functional Materials and Materials Chemistry group (FACET) ved NTNU. Hans arbeid omhandler ferroelektriske domenevegger for nanoelektronikk ved bruk av density functional theory (DFT) simuleringer.
Veileder: Professor Sverre M. Selbach
Bakgrunn
I 2016 begynte Kristoffer på Industriell kjemi og bioteknologi ved NTNU. Han spesialiserte seg i Materialkjemi og energiteknologi og videre i Funkjonelle materialer og nanomaterialer. Våren 2021 skrev han mater om faststoffelektrolytter for batterier med DFT som forskningsmetode.
Kompetanseord
Publikasjoner
2026
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Eggestad, Kristoffer;
Selbach, Sverre Magnus;
Williamson, Benjamin Albert Dobson;
Meier, Dennis.
(2026)
Ferroic Materials and Phenomena at Ferroic Domain Walls.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
2025
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Zeiger, Caren Regine;
Eggestad, Kristoffer;
Walker, Julian Bradley;
Einarsrud, Mari-Ann;
Williamson, Benjamin Albert Dobson;
Grande, Tor.
(2025)
Quantifying Emptiness: On the Size of A-Site Vacancies in Tetragonal Tungsten Bronzes.
Chemistry of Materials
Vitenskapelig artikkel
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Williamson, Benjamin Albert Dobson;
Eggestad, Kristoffer;
Selbach, Sverre Magnus.
(2025)
Pseudo-lithium vacancies in hydrogen rich Li<inf>3</inf>OCl.
Journal of Materials Chemistry A
Vitenskapelig artikkel
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Gullbrekken, Øystein;
Eggestad, Kristoffer;
Tsoutsouva, Maria;
Williamson, Benjamin Albert Dobson;
Rettenwander, Daniel;
Einarsrud, Mari-Ann.
(2025)
Phase Evolution and Thermodynamics of Cubic Li<inf>6.25</inf>Al<inf>0.25</inf>La<inf>3</inf>Zr<inf>2</inf>O<inf>12</inf> Studied by High-Temperature X-ray Diffraction.
Inorganic Chemistry
Vitenskapelig artikkel
2024
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Eggestad, Kristoffer;
Selbach, Sverre Magnus;
Williamson, Benjamin Albert Dobson.
(2024)
Doping implications of Li solid state electrolyte Li7La3Zr2O12.
Journal of Materials Chemistry A
Vitenskapelig artikkel
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Eggestad, Kristoffer;
Williamson, Benjamin Albert Dobson;
Meier, Dennis;
Selbach, Sverre Magnus.
(2024)
Mobile intrinsic point defects for conductive neutral domain walls in LiNbO3.
Journal of Materials Chemistry C
Vitenskapelig artikkel
Tidsskriftspublikasjoner
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Zeiger, Caren Regine;
Eggestad, Kristoffer;
Walker, Julian Bradley;
Einarsrud, Mari-Ann;
Williamson, Benjamin Albert Dobson;
Grande, Tor.
(2025)
Quantifying Emptiness: On the Size of A-Site Vacancies in Tetragonal Tungsten Bronzes.
Chemistry of Materials
Vitenskapelig artikkel
-
Williamson, Benjamin Albert Dobson;
Eggestad, Kristoffer;
Selbach, Sverre Magnus.
(2025)
Pseudo-lithium vacancies in hydrogen rich Li<inf>3</inf>OCl.
Journal of Materials Chemistry A
Vitenskapelig artikkel
-
Gullbrekken, Øystein;
Eggestad, Kristoffer;
Tsoutsouva, Maria;
Williamson, Benjamin Albert Dobson;
Rettenwander, Daniel;
Einarsrud, Mari-Ann.
(2025)
Phase Evolution and Thermodynamics of Cubic Li<inf>6.25</inf>Al<inf>0.25</inf>La<inf>3</inf>Zr<inf>2</inf>O<inf>12</inf> Studied by High-Temperature X-ray Diffraction.
Inorganic Chemistry
Vitenskapelig artikkel
-
Eggestad, Kristoffer;
Selbach, Sverre Magnus;
Williamson, Benjamin Albert Dobson.
(2024)
Doping implications of Li solid state electrolyte Li7La3Zr2O12.
Journal of Materials Chemistry A
Vitenskapelig artikkel
-
Eggestad, Kristoffer;
Williamson, Benjamin Albert Dobson;
Meier, Dennis;
Selbach, Sverre Magnus.
(2024)
Mobile intrinsic point defects for conductive neutral domain walls in LiNbO3.
Journal of Materials Chemistry C
Vitenskapelig artikkel
Rapport
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Eggestad, Kristoffer;
Selbach, Sverre Magnus;
Williamson, Benjamin Albert Dobson;
Meier, Dennis.
(2026)
Ferroic Materials and Phenomena at Ferroic Domain Walls.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling
Undervisning
Formidling
2025
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Vitenskapelig foredragEggestad, Kristoffer; Skogvoll, Ida Cathrine; Khalid, Muhammad Zeeshan; Skjærvø, Sandra Helen; Williamson, Benjamin Albert Dobson; Meier, Dennis. (2025) Reversible and rewritable p- and n-type conducting ferroelectric domain walls?. Materials Research Society Spring Meeting 2025 , Seattle 07.04.2025 - 11.04.2025
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Vitenskapelig foredragEggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson. (2025) Doping Li7La3Zr2O12 (LLZO) -Implications for Charge Carrier Concentration and Processing. Materials Research Society Spring Meeting 2025 , Seattle 07.04.2025 - 11.04.2025
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Vitenskapelig foredragFinnseth, Øyvind; Brzozowski, Damian; Mathisen, Anders Christian; Brinkman, Stefanie Suzanne; Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson. (2025) Electronic Structure of LSMO thin films. European Materials Research Society Spring Meeting 2025 , Strasbourg 26.05.2025 - 30.05.2025
2024
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Vitenskapelig foredragEggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Meier, Dennis; Selbach, Sverre Magnus. (2024) Point Defects and Domain Walls in Soft Ferroelectric CsGeX3 (X = Cl, Br, I). MRS Spring Meeting , Seattle 22.04.2024 - 26.04.2024
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Vitenskapelig foredragEggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Meier, Dennis; Selbach, Sverre Magnus. (2024) Point Defects and Domain Walls in Soft Ferroelectric CsGeX3 (X = Cl, Br, I). DPG Spring Meeting , Berlin 17.03.2024 - 22.03.2024
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Vitenskapelig foredragEggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Selbach, Sverre Magnus. (2024) On-the-fly Machine-Learned Potentials for MD Simulations of Ferroelectric Phase Transitions. 2024 Fall Meeting , Warsaw 16.09.2024 - 19.09.2024
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Vitenskapelig foredragZeiger, Caren Regine; Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2024) What is the Size of a Cation Vacancy in Tetragonal Tungsten Bronzes?. ECAPD 2024 , Trondheim 16.06.2024 - 19.06.2024
2023
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Faglig foredragKelly, Michael Robert; Hårberg, Sofie Brandtzæg; Eggestad, Kristoffer; Finnseth, Øyvind; Olsen, Gerhard Henning; Walker, Julian Bradley. (2023) Supermaterialer for en bærekraftig framtid. Researcher Night , Realfagbygget, Gløshaugen, NTNU 28.09.2023 - 28.09.2023
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PosterEggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson. (2023) Doping Implications for Garnet Li7La3Zr2O12. LLZO4WC , Tromsø 03.09.2023 - 07.09.2023
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Vitenskapelig foredragEggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Khalid, Muhammad Zeeshan; Meier, Dennis; Selbach, Sverre Magnus. (2023) Point Defects at Ferroelectric Domain Walls in LiNbO3. IMF2023 , Tel Aviv 26.03.2023 - 30.03.2023
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PosterEggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Khalid, Muhammad Zeeshan; Meier, Dennis; Selbach, Sverre Magnus. (2023) Point Defects at Ferroelectric Domain Walls in LiNbO3. NKS-FUM 2023 13.02.2023 - 14.02.2023
2022
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Faglig foredragKelly, Michael Robert; Hårberg, Sofie Brandtzæg; Eggestad, Kristoffer; Finnseth, Øyvind; Wiik, Kjell. (2022) Supermaterialer for en bærekraftig framtid. Researchers Night , Realfagbygget, NTNU Gløshaugen 30.09.2022 - 30.09.2022