Ferroelectric BaTaO₂N Crystals Grown in a BaCN₂ Flux

TAKESADA Masaki

Department of Physics

Dec. 17, 2019

Press release (in Japanese)

Abstract
Perovskite-type oxynitride BaTaO₂N has been attracting attention for its large dielectric constant, which is almost independent of the temperature by measurements on its ceramics. Its dielectric characteristics are attributed to polar nanoregions (PNRs) in the average cubic crystal structure. Polarization saturation to produce a butterfly-like piezoresponse force microscopy (PFM) signal was observed on BaTaO₂N crystals in the present study. Reddish crystallites of BaTaO₂N…..

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Article Information:
Ferroelectric BaTaO₂N Crystals Grown in a BaCN₂ Flux
Akira Hosono, Yuji Masubuchi, Shintaro Yasui, Masaki Takesada, Takashi Endo, Mikio Higuchi, Mitsuru Itoh, and Shinichi Kikkawa
Inorganic Chemistry 2019 58 (24), 16752-16760.
DOI: 10.1021/acs.inorgchem.9b02917