Melting of Pb Charge Glass and Simultaneous Pb-Cr Charge Transfer in PbCrO3 as the Origin of Volume Collapse

Runze Yu; Hajime Hojo; Tetsu Watanuki; Masaichiro Mizumaki; Takashi Mizokawa; Kengo Oka; Hyunjeong Kim; Akihiko Machida; Kouji Sakaki; Yumiko Nakamura; Akane Agui; Daisuke Mori; Yoshiyuki Inaguma; Martin Schlipf; Konstantin Z. Rushchanskii; Marjana Ležaić; Masaaki Matsuda; Jie Ma; Stuart Calder; Masahiko Isobe; Yuichi Ikuhara; Masaki Azuma

doi:10.1021/jacs.5b08216

Melting of Pb Charge Glass and Simultaneous Pb-Cr Charge Transfer in PbCrO₃ as the Origin of Volume Collapse

Runze Yu^*, Hajime Hojo, Tetsu Watanuki, Masaichiro Mizumaki, Takashi Mizokawa, Kengo Oka, Hyunjeong Kim, Akihiko Machida, Kouji Sakaki, Yumiko Nakamura, Akane Agui, Daisuke Mori, Yoshiyuki Inaguma, Martin Schlipf, Konstantin Z. Rushchanskii, Marjana Ležaić, Masaaki Matsuda, Jie Ma, Stuart Calder, Masahiko IsobeYuichi Ikuhara, Masaki Azuma

^*この研究の対応する著者

研究成果: Article › 査読

35 被引用数 (Scopus)

抄録

A metal to insulator transition in integer or half integer charge systems can be regarded as crystallization of charges. The insulating state tends to have a glassy nature when randomness or geometrical frustration exists. We report that the charge glass state is realized in a perovskite compound PbCrO₃, which has been known for almost 50 years, without any obvious inhomogeneity or triangular arrangement in the charge system. PbCrO₃ has a valence state of Pb²⁺_0.5Pb⁴⁺_0.5Cr³⁺O₃ with Pb²⁺-Pb⁴⁺ correlation length of three lattice-spacings at ambient condition. A pressure induced melting of charge glass and simultaneous Pb-Cr charge transfer causes an insulator to metal transition and ∼10% volume collapse.

本文言語	English
ページ（範囲）	12719-12728
ページ数	10
ジャーナル	Journal of the American Chemical Society
巻	137
号	39
DOI	https://doi.org/10.1021/jacs.5b08216
出版ステータス	Published - 2015 10月 7
外部発表	はい

ASJC Scopus subject areas

触媒
化学 (全般)
生化学
コロイド化学および表面化学

文献へのアクセス

10.1021/jacs.5b08216

他のファイルとリンク

引用スタイル

Yu, R., Hojo, H., Watanuki, T., Mizumaki, M., Mizokawa, T., Oka, K., Kim, H., Machida, A., Sakaki, K., Nakamura, Y., Agui, A., Mori, D., Inaguma, Y., Schlipf, M., Rushchanskii, K. Z., Ležaić, M., Matsuda, M., Ma, J., Calder, S., ... Azuma, M. (2015). Melting of Pb Charge Glass and Simultaneous Pb-Cr Charge Transfer in PbCrO₃ as the Origin of Volume Collapse. Journal of the American Chemical Society, 137(39), 12719-12728. https://doi.org/10.1021/jacs.5b08216

Yu, R, Hojo, H, Watanuki, T, Mizumaki, M, Mizokawa, T, Oka, K, Kim, H, Machida, A, Sakaki, K, Nakamura, Y, Agui, A, Mori, D, Inaguma, Y, Schlipf, M, Rushchanskii, KZ, Ležaić, M, Matsuda, M, Ma, J, Calder, S, Isobe, M, Ikuhara, Y & Azuma, M 2015, 'Melting of Pb Charge Glass and Simultaneous Pb-Cr Charge Transfer in PbCrO₃ as the Origin of Volume Collapse', Journal of the American Chemical Society, vol. 137, no. 39, pp. 12719-12728. https://doi.org/10.1021/jacs.5b08216

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abstract = "A metal to insulator transition in integer or half integer charge systems can be regarded as crystallization of charges. The insulating state tends to have a glassy nature when randomness or geometrical frustration exists. We report that the charge glass state is realized in a perovskite compound PbCrO3, which has been known for almost 50 years, without any obvious inhomogeneity or triangular arrangement in the charge system. PbCrO3 has a valence state of Pb2+0.5Pb4+0.5Cr3+O3 with Pb2+-Pb4+ correlation length of three lattice-spacings at ambient condition. A pressure induced melting of charge glass and simultaneous Pb-Cr charge transfer causes an insulator to metal transition and ∼10% volume collapse.",

author = "Runze Yu and Hajime Hojo and Tetsu Watanuki and Masaichiro Mizumaki and Takashi Mizokawa and Kengo Oka and Hyunjeong Kim and Akihiko Machida and Kouji Sakaki and Yumiko Nakamura and Akane Agui and Daisuke Mori and Yoshiyuki Inaguma and Martin Schlipf and Rushchanskii, {Konstantin Z.} and Marjana Le{\v z}ai{\'c} and Masaaki Matsuda and Jie Ma and Stuart Calder and Masahiko Isobe and Yuichi Ikuhara and Masaki Azuma",

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AU - Mizumaki, Masaichiro

AU - Mizokawa, Takashi

AU - Oka, Kengo

AU - Kim, Hyunjeong

AU - Machida, Akihiko

AU - Sakaki, Kouji

AU - Nakamura, Yumiko

AU - Agui, Akane

AU - Mori, Daisuke

AU - Inaguma, Yoshiyuki

AU - Schlipf, Martin

AU - Rushchanskii, Konstantin Z.

AU - Ležaić, Marjana

AU - Matsuda, Masaaki

AU - Ma, Jie

AU - Calder, Stuart

AU - Isobe, Masahiko

AU - Ikuhara, Yuichi

AU - Azuma, Masaki

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