中国物理B ›› 2020, Vol. 29 ›› Issue (3): 36102-036102.doi: 10.1088/1674-1056/ab69ea

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Synthesis, structure, and properties of Ba9Co3Se15 with one-dimensional spin chains

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)   

  1. 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
  • 收稿日期:2019-11-26 修回日期:2020-01-06 出版日期:2020-03-05 发布日期:2020-03-05
  • 通讯作者: Xian-Cheng Wang, Chang-Qing Jin E-mail:wangxiancheng@aphy.iphy.ac.cn;jin@iphy.ac.cn
  • 基金资助:
    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).

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. 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
  • Received:2019-11-26 Revised:2020-01-06 Online:2020-03-05 Published:2020-03-05
  • Contact: Xian-Cheng Wang, Chang-Qing Jin E-mail:wangxiancheng@aphy.iphy.ac.cn;jin@iphy.ac.cn
  • Supported by:
    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).

摘要: 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.

关键词: one-dimensional chain, spin glass, high-pressure

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.

Key words: one-dimensional chain, spin glass, high-pressure

中图分类号:  (X-ray diffraction)

  • 61.05.cp
61.50.-f (Structure of bulk crystals) 61.66.Fn (Inorganic compounds) 61.82.Fk (Semiconductors)