Structure study of nanocrystalline o-LiMnO2
The nanocrystalline orthorhombic LiMnO2 was successfully synthesized with the raw materials of MnO2,Mn (CH3COO)2 and LiOH by hydrothermal synthesis method,which has the properties of small size,less stacking faults and single phase.High resolution electron microscopy images show that along the b axis of the orthogonal LiMnO2,MnO6 and LiO6 octahedron arrange alternately and regularly.The orthorhombic LiMnO2 is proved to be p-type semiconductor by the Hall test.XPS tests indicate that the trivalent Mn in the o-LiMnO2 is in the high-spin state.And the magnetic study shows that there is reentrant spin glass behavior in o-LiMnO2.The contrast study of Raman spectroscopy and magnetic susceptibility shows that the characteristic mode softening of structural phase transition corresponds to the magnetic phase transition temperature,indicating a possible interaction between phonons and spin.
o-LiMnO2 material HR-TEM Magnetic Raman spectroscopy
Li-Zhu Zhao Gang Chen
College of Physics,Northeast Normal University,Changchun 130024,China College of Physics,Jilin University,Changchun 130012,China
国际会议
大理
英文
42-48
2011-08-18（万方平台首次上网日期，不代表论文的发表时间）