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  Oxygen-driven competition between low-dimensional structures of Sr3CoMO6 and Sr3CoMO7−δ with M = Ru, Ir

Mikhailova, D., Reichel, P., Tsirlin, A. A., Abakumov, A. M., Senyshyn, A., Mogare, K. M., et al. (2014). Oxygen-driven competition between low-dimensional structures of Sr3CoMO6 and Sr3CoMO7−δ with M = Ru, Ir. Dalton Transactions, 43(37), 13883-13891. doi:10.1039/C4DT01893A.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0023-C9E6-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-01C7-D
Genre: Journal Article

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 Creators:
Mikhailova, Daria1, Author              
Reichel, Phillip2, Author              
Tsirlin, Alexander A.3, Author
Abakumov, Artem M.3, Author
Senyshyn, Anatoliy3, Author
Mogare, Kailash M.4, Author              
Schmidt, Marcus5, Author              
Kuo, Chang-Yang6, Author              
Pao, Chin-Wen3, Author
Pi, Tun-Wen3, Author
Lee, Jyh-Fu3, Author
Hu, Zhiwei7, Author              
Tjeng, Liu Hao8, Author              
Affiliations:
1Daria Mikhailova, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863448              
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
3external, ou_persistent22              
4Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
5Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              
6Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
7Zhiwei Hu, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863461              
8Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              

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 Abstract: We have realized a reversible structure transformation of one-dimensional 1D K4CdCl6-type Sr3CoMO6 with the Co2+/M4+ cation ordering into the two-dimensional 2D double layered Ruddlesden–Popper structure Sr3CoMO7−δ with a random distribution of Co and M (with M = Ru, Ir) upon increasing the partial oxygen pressure. The combined soft and hard X-ray absorption spectroscopy studies show that under transformation, Co and M cations were oxidized to Co3+ and M5+. During oxidation, high-spin Co2+ in Sr3CoMO6 first transforms into high-spin Co3+ in oxygen-deficient Sr3CoMO7−δ, and then further transforms into low-spin Co3+ in fully oxidized Sr3CoMO7 upon further increasing the partial pressure of oxygen. The 1D Sr3CoMO6 compound is magnetically ordered at low temperatures with the magnetic moments lying along the c-axis. Their alignment is parallel for Sr3CoRuO6 and antiparallel for Sr3CoIrO6. The 2D compounds reveal a spin-glass-like behavior related to the random distribution of magnetic cations in the structure.

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Language(s): eng - English
 Dates: 2014-10-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1039/C4DT01893A
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Title: Dalton Transactions
  Other : Dalton Trans.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 43 (37) Sequence Number: - Start / End Page: 13883 - 13891 Identifier: ISSN: 1477-9226
CoNE: /journals/resource/954925269323