Polar nano-region structure in the oxynitride perovskite LaTiO2N

Jun-ichi Yamaura; Sachiko Maki; Takashi Honda; Yoshio Matsui; Alfian Noviyanto; Toshiya Otomo; Hitoshi Abe; Youichi Murakami; Naoki Ohashi

doi:10.1039/C9CC07029J

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Polar nano-region structure in the oxynitride perovskite LaTiO₂N†

Jun-ichi Yamaura,

*^a Sachiko Maki,^a Takashi Honda,

^b Yoshio Matsui,

^c Alfian Noviyanto,^c Toshiya Otomo,^b Hitoshi Abe,

^b Youichi Murakami^ab and Naoki Ohashi

^ac

Author affiliations

* Corresponding authors

^a Materials Research Centre for Element Strategy, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
E-mail: jyamaura@mces.titech.ac.jp

^b Condensed Matter Research Centre, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan

^c National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan

Abstract

We investigated the multiscale characters of the crystal structure of the oxynitride perovskite LaTiO₂N. While X-ray diffraction results identified the average structure as being centrosymmetric, we detected a signature of unknown structural deformation. By viewing the local structure, we unveiled the formation of a polar structure at the nanoscale.

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Article information

DOI: https://doi.org/10.1039/C9CC07029J
Article type: Communication
Submitted: 09 Sep 2019
Accepted: 25 Nov 2019
First published: 08 Jan 2020
This article is Open Access

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Chem. Commun., 2020,56, 1385-1388

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Polar nano-region structure in the oxynitride perovskite LaTiO₂N

J. Yamaura, S. Maki, T. Honda, Y. Matsui, A. Noviyanto, T. Otomo, H. Abe, Y. Murakami and N. Ohashi, Chem. Commun., 2020, 56, 1385 DOI: 10.1039/C9CC07029J

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