Browsing NTNU Open by Author "Griffin, Sinead M"
Now showing items 1-3 of 3
-
Defect Chemistry as a Crystal Structure Design Parameter: Intrinsic Point Defects and Ga Substitution in InMnO3
Griffin, Sinead M; Reidulff, Mari; Selbach, Sverre Magnus; Spaldin, Nicola A (Journal article, 2017)The effect of defect chemistry on the polar and nonpolar phases of hexagonal InMnO3 is investigated using first-principles density functional calculations. Our motivation is to show how point defects and substitutional ... -
Global formation of topological defects in the multiferroic hexagonal manganites
Meier, Quintin Noel; Lilienblum, Martin; Griffin, Sinead M; Conder, K; Pomjakushina, Ekaterina; Yan, Zewu; Bourret, Edith; Meier, Dennis; Lichtenberg, Frank; Salje, Ekhard K. H.; Spaldin, Nicola A.; Fiebig, Manfred; Cano, Andrés (Journal article; Peer reviewed, 2017)The spontaneous transformations associated with symmetry-breaking phase transitions generate domain structures and defects that may be topological in nature. The formation of these defects can be described according to the ... -
Goldstone-like phonon modes in a (111)-strained perovskite
Marthinsen, Astrid; Griffin, Sinead M; Moreau, Magnus; Grande, Tor; Tybell, Per Thomas Martin; Selbach, Sverre Magnus (Journal article; Peer reviewed, 2018)Goldstone modes are massless particles resulting from spontaneous symmetry breaking. Although such modes are found in elementary particle physics as well as in condensed-matter systems like superfluid helium, superconductors, ...