Departement für Chemie, Biochemie und Pharmazie

Team

Dr. Didrik Småbråten

Postdoc (October 2020 - September 2021), now at SINTEF

Departement für Chemie, Biochemie und Pharmazie

Education and research

2020 - 2021:
Postdoctoral researcher with Prof. Dr. Ulrich Aschauer, University of Bern, Bern, Switzerland.
2018 - 2020:
Postdoctoral researcher with Prof. Sverre Magnus Selbach, NTNU Norwegian University of Science and Technology, Trondheim, Norway.
2016 - 2017:
Visiting researcher with Tsuyoshi Miyazaki, National Instititute for Materials Science, Tsukuba, Ibaraki, Japan.
2014 - 2018:
Ph.D. in Materials Science with Prof. Sverre Magnus Selbach, Prof. Dennis Meier, and Prof. Svein Sunde, NTNU Norwegian University of Science and Yechnology, Trondheim, Norway.
2009 - 2014:
M.Sc. in Chemical Engineering and Biotechnology, NTNU Norwegian University of Science and Technology, Trondheim, Norway.

Publications

  1. D. M. Evans, D. R. Småbråten, T. S. Holstad, P. E. Vullum, A. B. Mosberg, Z. Yan, E. Bourret, A. T. J. van Helvoort, S. M. Selbach, and D. Meier, Observation of Electric-Field-Induced Structural Dislocations in a Ferroelectric Oxide, Nano Lett. 21, 3386 (2021).
  2. T. S. Holstad, T. M. Ræder, D. M. Evans, D. R. Småbråten, S. Krohns, J. Schaab, Z. Yan, E. Bourret, A. T. J. van Helvoort, T. Grande, S. M. Selbach, J. C. Agar, and D. Meier, Application of a long short-term memory for deconvoluting conductance contributions at charged ferroelectric domain walls, npj Comput. Mater. 6, 163 (2020).
  3. D. R. Småbråten, A. Nakata, D. Meier, T. Miyazaki, and S. M. Selbach, First-principles study of topologically protected vortices and ferroelectric domains walls in hexagonal YGaO3, Phys. Rev. B 102, 144103 (2020).
  4. D. M. Evans*, T. S. Holstad*, A. B. Mosberg*, D. R. Småbråten*, P. E. Vullum, A. L. Dadlani, Z. Yan, E. Bourret, D. Gao, J. Akola, J. Torgersen, A. T. J. van Helvoort, S. M. Selbach, and D. Meier (*The authors contributed equally), Conductivity control via minimally invasive anti-Frenkel defects in a functional oxide, Nat. Mater. (2020).
  5. D. R. Småbråten, T. S. Holstad, D. M. Evans, Z. Yan, E. Bourret, D. Meier, and S. M. Selbach, Domain wall mobility and domain roughening by dopants in the ferroelectric hexagonal manganites, Phys. Rev. Research 2, 033159 (2020).
  6. J. Schultheiß, J. Schaab, D. R. Småbråten, S. H. Skjærvø, E. Bourret, Z. Yan, S. M. Selbach, and D. Meier, Intrinsic and extrinsic conduction contributions at nominally neutral domain walls in hexagonal manganites, Appl. Phys. Lett. 116, 262903 (2020).
  7. M. Makarovic, N. Kanas, A. Zorko, K. Ziberna, H. Ursic, D. R. Småbråten, S. M. Selbach, and T. Rojac, Tailoring the electrical conductivity and hardening in BiFeO3 ceramics, J. Eur. Ceram. Soc. 40, 5483 (2020).
  8. C. Koyama, S. Tahara, S. Kohara, Y. Onodera, D. R. Småbråten, S. M. Selbach, J. Akola, T. Ishikawa, A. Masuno, A. Mizuno, J. T. Okada, Y. Watanabe, Y. Nakata, K. Ohara, H. Tamaru, H. Oda, I. Obayashi, Y. Hiraoka, and O. Sakata, Very sharp diffraction peak in non-glass forming liquid with the formation of distorted tetraclusters, NPG Asia Mater. 12, 43 (2020).
  9. P. Barrozo, D. R. Småbråten, Y.-L. Tang, B. Prasad, S. Saremi, R. Ozgur, V. Thakare, R. A. Steinhardt, M. E. Holtz, V. A. Stoica, L. W. Martin, D. G. Schlom, S. M. Selbach, and R. Ramesh, Defect-Enhanced Polarization Switching in the Improper Ferroelectric LuFeO3, Adv. Mater. 32, 2000508 (2020).
  10. Z. L. M. Botello, A. Montenegro, N. G. Osorio, M. Huvé, C. Pirovano, D. R. Småbråten, S. M. Selbach, A. Caneiro, P. Roussel and G. H. Gauthier, Pure and Zr-doped YMnO3+δ as a YSZ-compatible SOFC cathode: a combined computational and experimental approach, J. Mater. Chem. A 7, 18589 (2019).
  11. D. R. Småbråten, Q. N. Meier, S. H. Skjærvø, K. Inzani, D. Meier, and S. M. Selbach, Charged domain walls in improper ferroelectric hexagonal manganites and gallates, Phys. Rev. Mater. 2, 114405 (2018).
  12. S. H. Skjærvø, D. R. Småbråten, N. A. Spaldin, T. Tybell, and S. M. Selbach, Oxygen vacancies in the bulk and at neutral domain walls in hexagonal YMnO3, Phys. Rev. B 98, 184102 (2018).
  13. T. S. Holstad, D. M. Evans, A. Ruff, D. R. Småbråten, J. Schaab, Ch. Tzschaschel, Z. Yan, E. Bourret, S. M. Selbach, S. Krohns, and D. Meier, Electronic bulk and domain wall properties in B-site doped hexagonal ErMnO3, Phys. Rev. B 97, 085143 (2018).