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  Spin State and Spin-State Transition of Co3+ Ion in BiCoO3

Zhao, J., Haw, S.-C., Wang, X., Hu, Z., Kuo, C.-Y., Chen, S.-A., et al. (2021). Spin State and Spin-State Transition of Co3+ Ion in BiCoO3. Physica Status Solidi B, 2100117, pp. 1-6. doi:10.1002/pssb.202100117.

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 Creators:
Zhao, Jianfa1, Author
Haw, Shu-Chih1, Author
Wang, Xiao2, Author              
Hu, Zhiwei3, Author              
Kuo, Chang-Yang2, Author              
Chen, Shin-An1, Author
Ishii, Hirofumi1, Author
Hiraoka, Nozumu1, Author
Lin, Hong-Ji1, Author
Chen, Chien-Te1, Author
Li, Zhi1, Author
Tanaka, Arata1, Author
Liu, Cheng-En2, Author              
Yu, Runze1, Author
Chen, Jin-Ming1, Author
Jin, Changqing1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              

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Free keywords: Cobalt; Cobalt metallography; Crystal structure; Electromagnetic wave emission; Emission spectroscopy; Ground state; Hydraulic structures; Multiferroics; Spin dynamics; X ray absorption spectroscopy; X ray scattering; X rays, Ambient pressures; Co-spin state transition; Crystal structure analysis; Intermediate spins; Soft x-ray absorption spectroscopies; Spin state transition; State transitions; X-ray emission spectra, Bismuth compounds
 Abstract: Confusion has arisen about the Co spin-state transition under high pressure for multiferroic BiCoO3. The crystal structure analysis indicates a high-spin (HS) to low-spin (LS) state transition with increasing pressure, while Co Kβ X-ray emission spectra present a high-spin to intermediate-spin (IS) state transition. Herein, the spin state of Co3+ in BiCoO3 is investigated utilizing soft X-ray absorption spectroscopy (XAS) at the Co-L2,3 and O-K edges at room temperature under ambient pressure. Furthermore, the spin state transition of Co3+ under high pressure is investigated by Co Kβ X-ray emission spectra. A pure HS-Co3+ ground state is found in the BiCoO3 sample prepared from the precursor and oxidizer mixed method—and the existence of a small part of LS-Co3+ in the BiCoO3 sample prepared from the precursor and oxidizer sandwiched method. A complete HS-Co3+ to LS-Co3+ transition is observed under high pressure up to 32.3 GPa. The results clarify the debate on the spin-state transition of BiCoO3 under high pressure and will deepen our understanding of the intrinsic physical properties on it. © 2021 Wiley-VCH GmbH

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Language(s): eng - English
 Dates: 2021-06-242021-06-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/pssb.202100117
BibTex Citekey: Zhao2021
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Title: Physica Status Solidi B
  Abbreviation : Phys. Status Solidi B
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: 2100117 Start / End Page: 1 - 6 Identifier: ISSN: 0370-1972
CoNE: https://pure.mpg.de/cone/journals/resource/958480240330