中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107405-107405.doi: 10.1088/1674-1056/25/10/107405

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Controlled synthesis of ferromagnetic MnSex particles

Junjie Sun(孙俊杰), Chao Li(李超), Duo Chen(陈铎), Shishou Kang(康仕寿), Guolei Liu(刘国磊), Shuyun Yu(于淑云), Guangbing Han(韩广兵), Liangmo Mei(梅良模)   

  1. School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • 收稿日期:2016-02-29 修回日期:2016-07-14 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Shishou Kang E-mail:skang@sdu.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2015CB921502), the National Natural Science Foundation of China (Grant Nos. 11474184 and 11627805), the 111 Project (Grant No. B13029), and the Fundamental Research Funds of Shandong University, China.

Controlled synthesis of ferromagnetic MnSex particles

Junjie Sun(孙俊杰), Chao Li(李超), Duo Chen(陈铎), Shishou Kang(康仕寿), Guolei Liu(刘国磊), Shuyun Yu(于淑云), Guangbing Han(韩广兵), Liangmo Mei(梅良模)   

  1. School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • Received:2016-02-29 Revised:2016-07-14 Online:2016-10-05 Published:2016-10-05
  • Contact: Shishou Kang E-mail:skang@sdu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2015CB921502), the National Natural Science Foundation of China (Grant Nos. 11474184 and 11627805), the 111 Project (Grant No. B13029), and the Fundamental Research Funds of Shandong University, China.

摘要: The MnSex (x=1,2) nanoparticles were synthesized under hydrothermal condition, by reaction of the reduced selenium and Mn2+ ion in the presence of hydrazine and acetic acid. By precisely controlling the pH value of the solution, a series of MnSex particles were synthesized. The structure and morphology of as-prepared particles were examined with x-ray diffractometer (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The average sizes of as-prepared particles varied from nanoscale to microscale with pH value increase. Furthermore, the nucleation and growth mechanism associated with pH values were discussed, which can be applied to the hydrothermal synthesis of metal chalcogenide in general. Finally, the optical and magnetic properties of as-prepared particles were measured. All as-made particles exhibit a ferromagnetic behavior with low coercivity and remanence at room temperature.

关键词: transition metal chalcogenide, phase transition, controlled synthesis

Abstract: The MnSex (x=1,2) nanoparticles were synthesized under hydrothermal condition, by reaction of the reduced selenium and Mn2+ ion in the presence of hydrazine and acetic acid. By precisely controlling the pH value of the solution, a series of MnSex particles were synthesized. The structure and morphology of as-prepared particles were examined with x-ray diffractometer (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The average sizes of as-prepared particles varied from nanoscale to microscale with pH value increase. Furthermore, the nucleation and growth mechanism associated with pH values were discussed, which can be applied to the hydrothermal synthesis of metal chalcogenide in general. Finally, the optical and magnetic properties of as-prepared particles were measured. All as-made particles exhibit a ferromagnetic behavior with low coercivity and remanence at room temperature.

Key words: transition metal chalcogenide, phase transition, controlled synthesis

中图分类号:  (Pnictides and chalcogenides)

  • 74.70.Xa
75.25.-j (Spin arrangements in magnetically ordered materials (including neutron And spin-polarized electron studies, synchrotron-source x-ray scattering, etc.))