A Novel, Layered Phase in Ti‐Rich SrTiO3 Epitaxial Thin Films

A Novel, Layered Phase in Ti‐Rich SrTiO3 Epitaxial Thin Films

Sr2Ti7O14, a new phase, is synthesized by leveraging the innate chemical and thermo­dynamic instabilities in the SrTiO3–TiO2 system and non‐equilibrium growth techniques. The chemical composition, epitaxial relationships, and orientation play roles in the formation of this novel layered phase, which...

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Veröffentlicht in:Advanced materials (Weinheim) 2015-02, Vol.27 (5), p.861-868
Hauptverfasser: Lee, Sungki, Damodaran, Anoop R., Gorai, Prashun, Oh, Nuri, Moyer, Jarrett A., Kwon, Ji‐Hwan, Ferdous, Naheed, Shah, Amish, Chen, Zuhuang, Breckenfeld, Eric, Mangalam, R. V. K., Braun, Paul V., Schiffer, Peter, Shim, Moonsub, Zuo, Jian‐Min, Ertekin, Elif, Martin, Lane W.
Format: Artikel
Sprache:eng
Schlagworte:
eutectic
self‐assembly
spontaneous phase separation
strontium titanate
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Zusammenfassung:Sr2Ti7O14, a new phase, is synthesized by leveraging the innate chemical and thermo­dynamic instabilities in the SrTiO3–TiO2 system and non‐equilibrium growth techniques. The chemical composition, epitaxial relationships, and orientation play roles in the formation of this novel layered phase, which, in turn, possesses unusual charge ordering, anti‐ferromagnetic ordering, and low, glass‐like thermal conductivity.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201403602