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采用水热法在低温下制备了MnxZn1-xS纳米线。MnxZn1-xS纳米线的形貌和微观结构用透射电子显微镜和X射线衍射仪进行表征。磁性能用振动样品磁强计进行测试。MnxZn1-xS的形貌取决于Mn的含量和在ZnS纳米粒子内外的分布。未掺杂Mn的ZnS纳米线的直径和长度分别为80～200nm和10～20μm。随着Mn含量的增加,MnxZn1-xS纳米线的平均直径逐渐增加,长径比不断减小。X射线衍射结果表明MnxZn1-xS纳米结构结晶性好,为六方纤锌矿结构。在Mn的掺杂量为0.25%时,矫顽力达到最大。随着Mn掺杂量的增加,饱和磁化强度也不断非线性增强。
MnxZn1-xS nanowires were prepared by hydrothermal method at low temperature. The morphology and microstructure of MnxZn1-xS nanowires were characterized by transmission electron microscopy and X-ray diffractometry. Magnetic properties with a vibrating sample magnetometer test. The morphology of MnxZn1-xS depends on the content of Mn and the distribution inside and outside the ZnS nanoparticles. The diameter and the length of the undoped ZnS nanowires are 80-200 nm and 10-20 μm, respectively. With the increase of Mn content, the average diameter of MnxZn1-xS nanowire increases gradually and the aspect ratio decreases continuously. X-ray diffraction results show that MnxZn1-xS nanostructures have good crystallinity and a hexagonal wurtzite structure. When the doping amount of Mn is 0.25%, the coercive force reaches the maximum. With the increase of Mn doping, the saturation magnetization continuously increases non-linearly.