中国物理B ›› 2007, Vol. 16 ›› Issue (3): 784-787.doi: 10.1088/1009-1963/16/3/037
陈栋梁1, 吴自玉1, 曹慧波2, 何伦华2, 张俊荣2, 王芳卫2, 严启伟2
Cao Hui-Bo(曹慧波)a)† , Chen Dong-Liang(陈栋梁)b), He Lun-Hua(何伦华)a), Zhang Jun-Rong(张俊荣)a), Wang Fang-Wei(王芳卫)a), Wu Zi-Yu(吴自玉)b), and Yan Qi-Wei(严启伟)a)
摘要: In this paper neutron diffraction experiments were performed for Fe-substituted Mn12 in order to determine the sites of Fe atoms. The results of structure refinements for the sample with our accessed highest Fe content showed that all Fe atoms occupied Mn(3) sites in the Mn12 skeleton. The x-ray absorption fine structure experiments as well as multiple scattering simulations gave the same result. Thus we concluded that Fe atoms only occupied Mn(3) sites. This conclusion also means that Fe-substituted Mn12 series only includes the four single-molecule magnets of [Mn12-xFexO12(CH3COO)16(H2O)4]\cdot 2CH3COOH\cdot 4H2O (x = 1, 2, 3, and 4), denoted by Mn11Fe1, Mn10Fe2, Mn9Fe3, and Mn8Fe4, respectively.
中图分类号: (Molecular magnets)