Competing Structural Instabilities in the Ruddlesden–Popper Derivatives HRTiO4 (R = Rare Earths): Oxygen Octahedral Rotations Inducing Noncentrosymmetricity and Layer Sliding Retaining Centrosymmetricity

We report the observation of noncentrosymmetricity in the family of HRTiO4 (R = Eu, Gd, Dy) layered oxides possessing a Ruddlesden–Popper derivative structure, by second harmonic generation and synchrotron X-ray diffraction with the support of density functional theory calculations. These oxides wer...

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Veröffentlicht in:	Chemistry of materials 2017-01, Vol.29 (2), p.656-665
Hauptverfasser:	Sen Gupta, Arnab, Akamatsu, Hirofumi, Brown, Forrest G, Nguyen, Minh An T, Strayer, Megan E, Lapidus, Saul, Yoshida, Suguru, Fujita, Koji, Tanaka, Katsuhisa, Tanaka, Isao, Mallouk, Thomas E, Gopalan, Venkatraman
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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