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

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

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.

Original language	English
Pages (from-to)	12719-12728
Number of pages	10
Journal	Journal of the American Chemical Society
Volume	137
Issue number	39
DOIs	https://doi.org/10.1021/jacs.5b08216
Publication status	Published - Oct 7 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/jacs.5b08216

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

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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T1 - Melting of Pb Charge Glass and Simultaneous Pb-Cr Charge Transfer in PbCrO3 as the Origin of Volume Collapse

AU - Yu, Runze

AU - Hojo, Hajime

AU - Watanuki, Tetsu

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

PY - 2015/10/7

Y1 - 2015/10/7

N2 - 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.

AB - 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.

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

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