中国物理B ›› 2002, Vol. 11 ›› Issue (2): 174-177.doi: 10.1088/1009-1963/11/2/313

• • 上一篇    下一篇

Structural and magnetic properties of Dy2Co17-xMnx compounds

李云宝1, 张立刚1, 张绍英2, 沈保根2   

  1. (1)Department of Applied Physics, University of Science and Technology of Wuhan, Wuhan 430081, China; (2)State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2001-09-10 修回日期:2001-10-18 出版日期:2002-02-13 发布日期:2005-06-13
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 50071041).

Structural and magnetic properties of Dy2Co17-xMnx compounds

Li Yun-Bao (李云宝)a, Zhang Li-Gang (张立刚)a, Zhang Shao-Ying (张绍英)b, Shen Bao-Gen (沈保根)b   

  1. a Department of Applied Physics, University of Science and Technology of Wuhan, Wuhan 430081, China; b State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-09-10 Revised:2001-10-18 Online:2002-02-13 Published:2005-06-13
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 50071041).

摘要: Using x-ray diffraction and magnetic measurements, we have studied the structural and magnetic properties of Dy2Co17-xMnx (x=0∽5) compounds with a rhombohedral Th2Zn17-type structure. With an increasing Mn concentration x, the unit-cell volume V was found to increase linearly. The Curie temperature Tc decreases linearly, and the saturation magnetization Ms at 5K first increases slightly for x<1, then decreases rapidly for x>1 with a further increase of Mn concentration x. In compounds for x=1~3, a spin reorientation was found. A magnetic diagram of the compounds is given.

Abstract: Using x-ray diffraction and magnetic measurements, we have studied the structural and magnetic properties of Dy2Co17-xMnx (x=0∽5) compounds with a rhombohedral Th2Zn17-type structure. With an increasing Mn concentration x, the unit-cell volume V was found to increase linearly. The Curie temperature Tc decreases linearly, and the saturation magnetization Ms at 5K first increases slightly for x<1, then decreases rapidly for x>1 with a further increase of Mn concentration x. In compounds for x=1~3, a spin reorientation was found. A magnetic diagram of the compounds is given.

Key words: 2:17-type compounds, crystal structure, magnetism

中图分类号:  (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))

  • 75.30.Kz
75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects) 61.66.Fn (Inorganic compounds)