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
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.
Received: 10 September 2001
Revised: 18 October 2001
Accepted manuscript online:
PACS:
75.30.Kz
(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 50071041).
Cite this article:
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 Dy2Co17-xMnx compounds 2002 Chinese Physics 11 174
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