Structure and Magnetic Properties of S-doped Mn3O4/S Composited Nanoparticles and Mn3O4 Nanoparticles

材料科学技术（英）, 2011, 27(6): 503-506.

^1, , ^2, , ^3, , ^4,

1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

2.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

3.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

4.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

基金项目: the National Basic Program of China(2010CB934603) the National Natural Science Foundation of China(50831006;50703046)

Structure and Magnetic Properties of S-doped Mn3O4/S Composited Nanoparticles and Mn3O4 Nanoparticles

X. He ^1, , Z.H. Wang ^2, , D.Y. Geng ^3, , Z.D. Zhang ^4,

1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

2.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

3.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

4.Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China

Keywords： Nanostructured materials

Composited nanoparticles, consisting of Mn3O4, S-doped Mn3O4 and S, were synthesized by co-precipitation reaction and Mn3O4 nanoparticles were then obtained after removing the pure S from the composited nanoparticles. The Mn3O4-type phase with larger lattice constant a was formed by doping sulfur. At fixed temperatures below Curie temperature (TC), the magnetization of the S-doped Mn3O4/S composited nanoparticles was smaller than that of the Mn3O4 nanoparticles. The blocking temperature was 36.3 and 34.8 K for Sdoped Mn3O4/S composite and Mn3O4 nanoparticles, respectively. The anisotropy field of S-doped Mn3O4/S composite was determined to be about 55.3 kOe.

参考文献

[1]	Z.W. Chen;J.K.L. Lai;C.H. Shek .Shape-controlled synthesis and nanostructure evolution of single-crystal Mn_3O_4 nanocrystals[J].Scripta materialia,2006(8):735-738.

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