Morozovska, Anna N. ; Eliseev, Eugene A. ; Karpinsky, Dmitry V. ; Silibin, Maxim V. ; Vasudevan, Rama ; Kalinin, Sergei V. ; Genenko, Yuri A. (2020)
Mesoscopic theory of defect ordering–disordering transitions in thin oxide films.
In: Scientific Reports, 10
doi: 10.1038/s41598-020-79482-w
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Ordering of mobile defects in functional materials can give rise to fundamentally new phases possessing ferroic and multiferroic functionalities. Here we develop the Landau theory for strain induced ordering of defects (e.g. oxygen vacancies) in thin oxide films, considering both the ordering and wavelength of possible instabilities. Using derived analytical expressions for the energies of various defect-ordered states, we calculated and analyzed phase diagrams dependence on the film-substrate mismatch strain, concentration of defects, and Vegard coefficients. Obtained results open possibilities to create and control superstructures of ordered defects in thin oxide films by selecting the appropriate substrate and defect concentration.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Morozovska, Anna N. ; Eliseev, Eugene A. ; Karpinsky, Dmitry V. ; Silibin, Maxim V. ; Vasudevan, Rama ; Kalinin, Sergei V. ; Genenko, Yuri A. |
| Art des Eintrags: | Bibliographie |
| Titel: | Mesoscopic theory of defect ordering–disordering transitions in thin oxide films |
| Sprache: | Englisch |
| Publikationsjahr: | 24 Dezember 2020 |
| Verlag: | Springer Nature |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scientific Reports |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| DOI: | 10.1038/s41598-020-79482-w |
| Kurzbeschreibung (Abstract): | Ordering of mobile defects in functional materials can give rise to fundamentally new phases possessing ferroic and multiferroic functionalities. Here we develop the Landau theory for strain induced ordering of defects (e.g. oxygen vacancies) in thin oxide films, considering both the ordering and wavelength of possible instabilities. Using derived analytical expressions for the energies of various defect-ordered states, we calculated and analyzed phase diagrams dependence on the film-substrate mismatch strain, concentration of defects, and Vegard coefficients. Obtained results open possibilities to create and control superstructures of ordered defects in thin oxide films by selecting the appropriate substrate and defect concentration. |
| Freie Schlagworte: | GE1171/8-1 |
| Zusätzliche Informationen: | Art.No.: 22377 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
| TU-Projekte: | DFG|GE1171/8-1|Kooperative Kinetik |
| Hinterlegungsdatum: | 11 Jan 2021 06:45 |
| Letzte Änderung: | 11 Mär 2021 08:21 |
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