氮氧化物钙钛矿LaTiON中的极性纳米区域结构。

Polar nano-region structure in the oxynitride perovskite LaTiON.

作者信息

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

机构信息

Materials Research Centre for Element Strategy, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan.

出版信息

Chem Commun (Camb). 2020 Jan 30;56(9):1385-1388. doi: 10.1039/c9cc07029j.

DOI:10.1039/c9cc07029j

PMID:31912062

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.

摘要

我们研究了氮氧化物钙钛矿LaTiO2N晶体结构的多尺度特征。虽然X射线衍射结果确定其平均结构为中心对称，但我们检测到了未知结构变形的迹象。通过观察局部结构，我们揭示了纳米尺度上极性结构的形成。