| Synthesis,structure, and properties of Ba9Co3Se(15) with one-dimensional spin chains |
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| 作者姓名： | 段磊 望贤成 张俊 赵建发 曹立朋 李文敏 于润泽 邓正 靳常青 |
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| 作者单位： | Institute of Physics;School of Physics;Materials Research Laboratory at Songshan Lake |
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| 基金项目： | 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)。 |
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| 摘 要： | A new compound with one-dimensional spin chains, Ba9Co3Se(15), was synthesized under high pressure and high temperature conditions and systematically characterized via structural, transport and magnetic measurements. Ba9Co3Se(15) crystallizes in a hexagonal structure with the space group P-6c2(No. 188) and lattice constants of a = b = 9.6765 ? and c = 18.9562 ?. 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 ?. 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 Ba9Co3Se(15) mainly arises from the magnetic frustration due to the geometrically frustrated triangular lattice.
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| 关 键 词： | ONE-DIMENSIONAL CHAIN SPIN GLASS high-pressure |
Synthesis,structure, and properties of Ba_9Co_3Se_(15) with one-dimensional spin chains |
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| Lei Duan,Xian-Cheng Wang,Jun Zhang,Jian-Fa Zhao,Li-Peng Cao,Wen-Min Li,Run-Ze Yu,Zheng Deng,Chang-Qing Jin.Synthesis,structure, and properties of Ba9Co3Se(15) with one-dimensional spin chains[J].Chinese Physics B,2020(3):330-334. |
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| Authors: | Lei Duan Xian-Cheng Wang Jun Zhang Jian-Fa Zhao Li-Peng Cao Wen-Min Li Run-Ze Yu Zheng Deng Chang-Qing Jin |
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| Institution: | (Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physics,University of Chinese Academy of Sciences,Beijing 100190,China;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 ? and c = 18.9562 ?. 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 ?. 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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| Keywords: | one-dimensional chain spin glass high-pressure |
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