Blar i NTNU Open på forfatter "Aschauer, Ulrich"
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Coupling and competition between ferroelectricity, magnetism, strain, and oxygen vacancies in AMnO3 perovskites
Marthinsen, Astrid; Faber, Carina; Aschauer, Ulrich; Spaldin, Nicola A.; Selbach, Sverre Magnus (Journal article; Peer reviewed, 2016)We use first-principles calculations based on density functional theory to investigate the interplay between oxygen vacancies, A-site cation size/tolerance factor, epitaxial strain, ferroelectricity, and magnetism in the ... -
Origin of ferroelectric polarization in tetragonal tungsten-bronze-type oxides
Olsen, Gerhard Henning; Aschauer, Ulrich; Spaldin, Nicola A.; Selbach, Sverre Magnus; Grande, Tor (Journal article; Peer reviewed, 2016)The origin of ferroelectric polarization in tetragonal tungsten-bronze- (TTB-) type oxide strontium barium niobate (SBN) is investigated using first-principles density functional calculations. We study in particular the ...