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  Charge Disproportionation and Complex Magnetism in a PbMnO3 Perovskite Synthesized under High Pressure

Li, X., Hu, Z., Cho, Y., Li, X., Sun, H., Cong, L., et al. (2021). Charge Disproportionation and Complex Magnetism in a PbMnO3 Perovskite Synthesized under High Pressure. Chemistry of Materials, 33(1), 92-101. doi:10.1021/acs.chemmater.0c02706.

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 Creators:
Li, Xiang1, Author
Hu, Zhiwei2, Author              
Cho, Yujin1, Author
Li, Xinyu1, Author
Sun, Hao1, Author
Cong, Longzheng1, Author
Lin, Hong-Ji1, Author
Liao, Sheng-Chieh1, Author
Chen, Chien-Te1, Author
Efimenko, Anna1, Author
Sahle, Christoph J.1, Author
Long, Youwen1, Author
Jin, Changqing1, Author
Downer, Michael C.1, Author
Goodenough, John B.1, Author
Zhou, Jianshi1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              

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 Abstract: Because of the possible crossover of Pb and 3d transition-metal (TM) redox levels, a charge transfer between Pb and TM leads to a continuous evolution from Pb2+Ti4+O3 to Pb4+Ni2+O3 in the perovskite family of PbTMO3 as verified by several reports. However, very little information is known about PbMnO3 in the PbTMO3 series. The perovskite PbMnO3 is the most difficult one to synthesize, although its geometric tolerance factor is close to 1. Here, we report a careful study of PbMnO3 synthesized under 15 GPa by a structural refinement and high-precision X-ray absorption spectroscopy (XAS) as well as a variety of measurements of physical properties. We can rationalize the physical properties of PbMnO3 based on a local bonding model and the valence states of Pb and Mn from XAS. Moreover, the complete study of PbMnO3 allows us to construct a more consistent picture of the valence evolution and the charge disproportionation for the entire family of PbTMO3 perovskites. © 2020 American Chemical Society. All rights reserved.

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Language(s): eng - English
 Dates: 2021-01-082021-01-08
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.chemmater.0c02706
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Title: Chemistry of Materials
  Abbreviation : Chem. Mater.
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 33 (1) Sequence Number: - Start / End Page: 92 - 101 Identifier: ISSN: 0897-4756
CoNE: https://pure.mpg.de/cone/journals/resource/954925561571