@article{oai:repo.qst.go.jp:00076590,
 author = {Sakai, Yuki and Nishikubo, Takumi and Ogata, Takahiro and Ishizaki, Hayato and Imai, Takashi and Mizumaki, Masaichiro and Mizokawa, Takashi and Machida, Akihiko and Watanuki, Tetsu and Yokoyama, Keisuke and Okimoto, Yoichi and Shin-ya, Koshihara and Das, Hena and Azuma, Masaki and Machida, Akihiko and Watanuki, Tetsu},
 issue = {13},
 journal = {Chemistry of Materials},
 month = {May},
 note = {ペロブスカイト酸化物Bi1-xPbxNiO3 (0.6<x<0.8)が極性の斜方晶から非極性の斜方晶へ相転移を示すことを明らかにした。Bi1-xPbxNiO3は、Pbの量に応じて連続的な結晶構造の変化を示す。Pb組成によって電荷移動と、極性−非極性転移という2つの異なるメカニズムで負熱膨張を示すことを発見した。},
 pages = {4748--4758},
 title = {Polar−Nonpolar Phase Transition Accompanied by Negative Thermal Expansion in Perovskite-Type Bi1−xPbxNiO3},
 volume = {31},
 year = {2019}
}