Structural and magnetic properties of Dy2Co17-xMnx compounds

doi:10.1088/1009-1963/11/2/313

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

Structural and magnetic properties of Dy₂Co_17-xMn_x compounds

李云宝¹, 张立刚¹, 张绍英², 沈保根²

(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 Dy₂Co_17-xMn_x 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

^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/Abstract

摘要： Using x-ray diffraction and magnetic measurements, we have studied the structural and magnetic properties of Dy₂Co_17-xMn_x (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 T_c decreases linearly, and the saturation magnetization M_s 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 Dy₂Co_17-xMn_x (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 T_c decreases linearly, and the saturation magnetization M_s 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)

李云宝, 张立刚, 张绍英, 沈保根. Structural and magnetic properties of Dy₂Co_17-xMn_x compounds[J]. 中国物理B, 2002, 11(2): 174-177.

Li Yun-Bao (李云宝), Zhang Li-Gang (张立刚), Zhang Shao-Ying (张绍英), Shen Bao-Gen (沈保根). Structural and magnetic properties of Dy₂Co_17-xMn_x compounds[J]. Chinese Physics, 2002, 11(2): 174-177.

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Structural and magnetic properties of Dy₂Co_17-xMn_x compounds

Structural and magnetic properties of Dy₂Co_17-xMn_x compounds

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