"Lei Hu,Yingcai Zhu,Yue-Wen Fang,Masayuki Fukuda,Takumi Nishikubo,Zhao Pan,Yuki Sakai,Shogo Kawaguchi,Hena Das,Akihiko Machida,Tetsu Watanuki,Shigeo Mori,Koshi Takenaka,Masaki Azuma","Origin and Absence of Giant Negative Thermal Expansion in Reduced and Oxidized Ca2RuO4",,"Chemistry of Materials",," 33"," 19",,2021,Sept. "Masayuki Fukuda,Ikuya Yamada,Hajime Hojo,Chihiro Takahashi,Yuya Yoshida,Katsuhisa Tanaka,Masaki Azuma,Koji Fujita","Topochemical synthesis of perovskite-type CuNb2O6 with colossal dielectric constant",,"Journal of Materials Chemistry C",," 9"," 39"," 1398-13990",2021,Aug. "Zhao Pan,Mao-Hua Zhang,Takumi Nishikubo,Yuki Sakai,Hajime Yamamoto,Hajime Hojo,Masayuki Fukuda,Lei Hu,Hayato Ishizaki,Satoru Kaneko,Shogo Kawaguchi,Jurij Koruza,J?rgen R?del,Masaki Azuma","Polarization Rotation at Morphotropic Phase Boundary in New Lead-Free Na1/2Bi1/2V1?xTixO3 Piezoceramics",,"Acs Applied Materials & Interfaces",," 13"," 4"," 5208-5215",2021,Jan.