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Synthesis, structure, and properties of Ba9Co3Se15 with one-dimensional spin chains |
Lei Duan(段磊)1,2, Xian-Cheng Wang(望贤成)1, Jun Zhang(张俊)1,2, Jian-Fa Zhao(赵建发)1,2, Li-Peng Cao(曹立朋)1,2, Wen-Min Li(李文敏)1,2, Run-Ze Yu(于润泽)1, Zheng Deng(邓正)1, Chang-Qing Jin(靳常青)1,2,3 |
1 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; 2 School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China; 3 Materials Research Laboratory at Songshan Lake, Dongguan 523808, China |
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Abstract A new compound with one-dimensional spin chains, Ba9Co3Se15, was synthesized under high pressure and high temperature conditions and systematically characterized via structural, transport and magnetic measurements. Ba9Co3Se15 crystallizes in a hexagonal structure with the space group P-6c2 (No. 188) and lattice constants of a =b = 9.6765 Å and c = 18.9562 Å. The structure consists of trimeric face-sharing octahedral CoSe6 chains, which are arranged in a triangular lattice in the ab-plane and separated by Ba atoms. The distance of the nearest neighbor of CoSe6 chains is very large, given by the lattice constant a= 9.6765 Å. The Weiss temperature Tθ associated with the intra-chain coupling strength is about -346 K. However, no long-range magnetic order but a spin glass transition at ~3 K has been observed. Our results indicate that the spin glass behavior in Ba9Co3Se15 mainly arises from the magnetic frustration due to the geometrically frustrated triangular lattice.
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Received: 26 November 2019
Revised: 06 January 2020
Accepted manuscript online:
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PACS:
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61.05.cp
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(X-ray diffraction)
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61.50.-f
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(Structure of bulk crystals)
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61.66.Fn
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(Inorganic compounds)
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61.82.Fk
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(Semiconductors)
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Fund: Project supported by the National Key R&D Program of China and the National Natural Science Foundation of China (Grant Nos. 2018YFA0305700, 2017YFA0302900, 11974410, and 11534016). |
Corresponding Authors:
Xian-Cheng Wang, Chang-Qing Jin
E-mail: wangxiancheng@aphy.iphy.ac.cn;jin@iphy.ac.cn
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Cite this article:
Lei Duan(段磊), Xian-Cheng Wang(望贤成), Jun Zhang(张俊), Jian-Fa Zhao(赵建发), Li-Peng Cao(曹立朋), Wen-Min Li(李文敏), Run-Ze Yu(于润泽), Zheng Deng(邓正), Chang-Qing Jin(靳常青) Synthesis, structure, and properties of Ba9Co3Se15 with one-dimensional spin chains 2020 Chin. Phys. B 29 036102
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