Journal of Fluorine Chemistry 209 (2018) 65–72 Contents lists available at ScienceDirect Journal of Fluorine Chemistry journal homepage: www.elsevier.com/locate/ﬂuor Phase transitions and dielectric properties of perovskite-type oxyﬂuorides (1-x)KNbO -xKMgF 3 3 a, a a a Tetsuhiro Katsumata , Nobuhiro Sawada , Ryosuke Kuraya , Takuma Hamagaki , b c,d d e Akihisa Aimi , Daisuke Mori , Yoshiyuki Inaguma , Ruing Ping Wang Department of Chemistry, School of Science, Tokai University, Kitakaname 4-1-1, Hiratsuka-shi, Kanagawa 259-1292, Japan Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan Department of Chemistry for Materials, Mie University, 1577 Kurimamachiyacho, Tsu, Mie 514-8507, Japan Department of Chemistry, Faculty of Science, Gakushuin University, Mejiro 1-5-1, Toshima-ku, Tokyo 171-8588, Japan National Institute of Advanced Industrial and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan ARTICLE I NFO ABSTRACT Keywords: (1-x)KNbO -xKMgF was synthesized using a sealed silica tube with an oxygen generator (KNMOF-O ) or a high- 3 3 2 Perovskite pressure and high-temperature apparatus (KNMOF-hp). The variations in phase transition temperature and di- Oxyﬂuoride electric properties were investigated. The temperatures of a tetragonal-to-cubic phase transition and an or- High-pressure synthesis thorhombic-to-tetragonal phase transition decreased
Journal of Fluorine Chemistry – Elsevier
Published: May 1, 2018
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