Composited nanoparticles,由 Mn3O4,做 S 的 Mn3O4 和 S 组成,被一起沉淀反应综合, Mn3O4 nanoparticles 然后在把纯 S 从 composited nanoparticles 移开以后被获得。有更大的格子常数的 Mn3O4 类型阶段一被做硫形成。在在居里温度(TC ) 下面的固定温度,做 S 的 Mn3O4/S composited nanoparticles 的磁化比 Mn3O4 nanoparticles 的小。堵住的温度分别地是为合成的做 S 的 Mn3O4/S 和 Mn3O4 nanoparticles 的 36.3 和 34.8 K。做 S 的 Mn3O4/S 的 anisotropy 地合成被决定是大约 55.3 kOe。
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.