Background and activities

Research group: Inorganic Materials and Ceramics Research Group.

Assoc. prof. at NTNU since 2012.

Things I do:

  • Defect chemistry and ferroic properties of oxides.
  • BiFeO3, lead-free relaxor piezoelectrics, hexagonal manganites and manganite perovskites.
  • Denisty Functional Theory (DFT) simulations.
  • Synthesis and characterization of oxides; physical properties and local structure (PDF).


  • TMT4245 Functional materials
  • MT8308 Advanced Solid State Chemistry
  • MT8307 Materials Thermodynamics (shared responsibility)


  • Research Council of Norway, FRINATEK.
  • Research Council of Norway, SYNKNØYT.
  • NTNU, "Outstanding Academic Fellow"-programme.

Current post docs and students

  • Post doc Dr. Bo Jiang
  • PhD student Sandra Helen Skjærvø
  • PhD student Astrid Marthinsen
  • PhD student Lu Xia
  • PhD student Didrik Småbråten
  • MSc student Stine Marie Hoggen
  • MSc student Nikolai Helth Gaukås
  • MSc student Kristian Thorbjørnsen
  • MSc student Rasmus Vester Thøgersen


  • M. Lilienblum, T. Lottermoser, S. Mainz, S. M. Selbach, A. Cano and M. Fiebig
    Ferroelectricity in the hexagonal manganites
    Nature Phys. 11 (2015) 1070-1073.

  • G. H. Olsen, S. M. Selbach and T. Grande
    On the energetics of cation ordering in tungsten-bronze-type oxides
    Phys. Chem. Chem. Phys. 17 (2015) 300343-30351.

  • A. K. E. Andersson, S. M. Selbach, T. Grande and C. S. Knee
    Thermal evolution of the crystal structure of proton conducting BaCe0.8Y0.2O3-δ from high-resolution neutron diffraction in dry and humid atmosphere 
    Dalton Trans. 44 (2015) 10834-10846.

  • Zh. Wang, A. P. Ratvik, T. Grande and S. M. Selbach.
    Diffusion of Alkali Metals in the First Stage Graphite Intercalation Compounds by vdW-DFT Calculations
    RSC Adv. 5 (2015) 15985-15992.

  • M. Nord, P.E. Vullum, M. Moreau, J.E. Boschker, S.M. Selbach, R. Holmestad and T. Tybell
    Structural phases driven by oxygen vacancies at the La0.7Sr0.3MnO3/SrTiO3 hetero-interface
    Appl. Phys. Lett. 106 (2015) 041604.

  • Y.-M. Kim, A. Morozovska, E. Eliseev, M. P. Oxley, R. Mishra, S. M. Selbach, T. Grande, S. T. Pantelides, S. V. Kalinin and A. Y. Borisevich
    Direct observation of ferroelectric field effect and vacancy-controlled screening at the BiFeO3/LaxSr1 − xMnO3 interface
    Nature Mater. 13 (2014) 1019-1025.

  • G. H. Olsen, M. H. Sørby, B. C. Hauback, S. M. Selbach and T. Grande
    Revisiting the crystal structure of rhombohedral lead metaniobate
    Inorg. Chem.
    53 (2014) 9715-9721.

  • A. K. E. Andersson, S. M. Selbach, Christopher S. Knee
    Chemical expansion due to hydration of proton-conducting perovskite oxide ceramics
    J. Am. Ceram. Soc. 97 (2014) 2654-2661.

  • Zh. Wang, S. M. Selbach and T. Grande
    Van der Waals density functional study of the energetics of alkali metal intercalation in graphite
    RSC Adv. 4 (2014) 4069-4079. PDF

  • U. Aschauer, R. Pfenninger, S. M. Selbach, T. Grande, N. A. Spaldin
    Strain controlled oxygen vacancy formation and ordering in CaMnO3
    Phys. Rev. B 88 (2013) 054111.

  • I. MacLaren, L. Q. Wang, B. Schaffer, Q. M. Ramasse, A. J. Craven, S. M. Selbach, N. A. Spaldin, S. Miao, K. Kalantari and I. M. Reaney
    Novel Nanorod Precipitate Formation in Neodymium and Titanium Codoped Bismuth Ferrite
    Adv. Funct. Mater. 23 (2013) 683-689.

  • S. M. Selbach, A. N. Løvik, K. Bergum, J. R. Tolchard, M.-A. Einarsrud and T. Grande
    Crystal structure, chemical expansion and phase stability of HoMnO3 at high temperature
    J. Solid State Chem. 196 (2012) 528-535.

  • S. M. Selbach, J. R. Tolchard, A. Fossdal and T. Grande
    Non-linear thermal evolution of the crystal structure and phase transitions of LaFeO3 investigated by high temperature X-ray diffraction
    J. Solid State Chem. 196 (2012) 249-254.

  • S. Tripathi, V. Petkov, S. M. Selbach, K. Bergum, M.-A. Einarsrud, T. Grande, and Y. Ren
    Structural coherence and ferroelectric order in nano-sized multiferroic YMnO3
    Phys. Rev. B 86 (2012) 094101

  • T. Grande, J. R. Tolchard and S. M. Selbach
    Anisotropic Thermal and Chemical Expansion in Sr-Substituted LaMnO3+d: Implications for Chemical Strain Relaxation
    Chem. Mater.
    24 (2012) 338-345.

  • K. Bergum, H. Okamoto, H. Fjellvåg, T. Grande, M.-A. Einarsrud and S. M. Selbach
    Synthesis, structure and magnetic properties of nanocrystalline YMnO3
    Dalton Trans. 40 (2011) 7583.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud and T. Grande
    PbO-deficient PbTiO3: mass transport, structural effects and possibility for intrinsic screening of the ferroelectric polarization
    Appl. Phys. Lett. 98 (2011) 091912.

  • V. Petkov, S. M. Selbach, M.-A. Einarsrud, T. Grande and S. D. Shastri
    Melting of Bi sublattice in nanosized BiFeO3 perovskite by resonant x-ray diffraction
    Phys. Rev. Lett. 105 (2010) 185501.

  • R. Saeterli, S. M. Selbach, P. Ravindran, T. Grande, R. Holmestad
    Experimental and theoretical study of the electronic structure of multiferroic BiFeO3 and related compounds.
    Phys. Rev. B  82 (2010) 064102.

  • M. Lie, M. Ø. Olderøy, J.-P. Andreassen, S. M. Selbach, B. L. Strand, P. Sikorski
    Alginate-controlled formation of nanoscale calcium carbonate and hydroxyapatite mineral phase within hydrogel networks.
    Acta Biomater. 6 (2010) 3665-3675.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    Phase transitions, electrical conductivity and chemical stability of BiFeO3 at high temperatures.
    J. Solid State Chem. 183 (2010)1205-1208.

  • Sverre Magnus Selbach
    Structure, stability and phase transitions of multiferroic BiFeO3
    PhD thesis, NTNU, November 2009.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    Structure and properties of multiferroic oxygen hyperstoichiometric BiFe1-xMnxO3+d.
    Chem. Mater. 21 (2009) 5176–5186.

  • G. Wang, S. M. Selbach, Y. Yu, X. Zhang, T. Grande, M.-A. Einarsrud
    Synthesis and characterization of KNbO3 nanorods.
    Cryst. Eng. Comm. 11 (2009) 1958-1963.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    High-temperature semiconducting cubic phase of BiFe0.7Mn0.3O3+d.
    Phys. Rev. B 79 (2009) 214113.

  • S. M. Selbach, M.-A. Einarsrud, T. Grande
    On the thermodynamic stability of BiFeO3.
    Chem. Mater. 21 (2009) 169-173.

  • F. Vullum, F. Nitsche, S. M. Selbach, T. Grande
    Solid solubility and phase transitions in the system LaNb1–xTaxO4.
    J. Solid State Chem. 181 (2008) 2580-2585.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    The ferroic phase transitions of BiFeO3.
    Adv. Mater. 20 (2008) 3692-3696.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    Size-dependent properties of multiferroic BiFeO3 nanoparticles.
    Chem. Mater. 19 (2007) 6478-6484.

  • S. M. Selbach, T. Tybell, M.-A. Einarsrud, T. Grande
    Synthesis of BiFeO3 by wet chemical methods.
    J. Am. Ceram. Soc. 90 (2007) 3430-3434.
  • S. M. Selbach, G. Wang, M.-A. Einarsrud, T. Grande
    Decomposition and crystallization of a sol-gel-derived PbTiO3.precursor
    J. Am. Ceram. Soc. 90 (2007) 2649-2652.


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