| Y3Fe5-xMnxO12的磁结构和磁性能 |
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| 引用本文： | 余梅,刘进,刘尊孝,杨继廉,金兰,张百生,周蕙明.Y3Fe5-xMnxO12的磁结构和磁性能[J].物理学报,1985,34(1):39-47. |
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| 作者姓名： | 余梅 刘进 刘尊孝 杨继廉 金兰 张百生 周蕙明 |
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| 作者单位： | (1)北京大学物理系; (2)中国科学院原子能研究所 |
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| 摘 要： | 对多晶Y3Fe3Fe5-xMnxO12(x=0.05和0.09),得到300K下的中子衍射曲线。发现当x=0.05时,Mn3+离子占据16a和24d位置的几率分别为0.72和0.28;当x=0.09时,Mn3+离子全部占据16a位置;还得到两种组分16a和24d位置各自的磁矩值。在外磁场(800—10KOe)下测量Y3Fe5-xMnxO12(x=0—0.11)的磁化曲线,温度范围是1.5—300K。得到饱和磁矩值;并利用趋近饱和定律确定1.5K下的磁晶各向异性常数k1值,发现|k1|值随含锰量增加而减小。
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| 收稿时间： | 1983-10-21 |
MAGNETIC STRUCTURE AND MAGNETIC PROPERTIES OF Y3Fe5-xMnxO12 |
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| YU MEI,LIU JIN,LIU ZUN-XIAO,YANG JI-LIAN,JIN LAN,ZHANG BAI-SHENG and ZHOU HUI-MING.MAGNETIC STRUCTURE AND MAGNETIC PROPERTIES OF Y3Fe5-xMnxO12[J].Acta Physica Sinica,1985,34(1):39-47. |
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| Authors: | YU MEI LIU JIN LIU ZUN-XIAO YANG JI-LIAN JIN LAN ZHANG BAI-SHENG and ZHOU HUI-MING |
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| Abstract: | Neutron diffraction patterns have been obtained for polycrystalline Y3Fe5-xMnxO12 at 300 K. The fraction of octahedral sites occupied by Mn3+ has been found to be 0.72 for x=0.05 and 1 for x=0.09. The magnetic moments of tetrahedral sites and octahedral sites have been determined respectively for x=0.05 and 0.09. The observed magnetic scattering is consistent with the Neel model and the measured saturation moment.Magnetizations were measured as a function of applied magnetic field from 800 Oe to 10 kOe in the range of 1.5-300 K. Magnetic anisotropy were determined from the approach to saturation, |k1| was found to decrease with Mn3+ content. |
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