| Mn离子取代M型钡铁氧体的研究 |
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| 引用本文： | 傅华,翟宏如,张毓昌,顾本喜,李靖元.Mn离子取代M型钡铁氧体的研究[J].物理学报,1986,35(7):833-840. |
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| 作者姓名： | 傅华 翟宏如 张毓昌 顾本喜 李靖元 |
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| 作者单位： | (1)南京大学物理系; (2)中国科学院物理研究所 |
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| 摘 要： | 本文对Mn离子取代M型钡铁氧体BaFe12-xMnxO19作了较系统的研究。主要结论如下:(1)在我们的实验条件下,Mn的取代量x可达4,其中约有0.1—0.3的Mn2+存在,其余Mn为三价。(2)Mn离子主要进入12k和2a晶位。(3)BaFe12-xMnxO19的各向异性常数K19,居里温度Tc和饱和磁化强度σs均随x的增加而下降。(4)Mn引起BaFe12-xMnxO19的非共线自旋结构。(5)Mn3+在12k和2a晶位中的平均零场劈裂因子Dh比尖晶石中八面体B位上的Mn3+之Dc值小近一个数量级。
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| 收稿时间： | 4/4/1985 12:00:00 AM |
A STUDY ON SUBSTUTION OF Fe IN BaFe12O19 BY Mn |
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| FU HUA,ZHAI HONG-RU,ZHANG YU-CHANG,GU BEN-XI and LI JlNG-YUAN.A STUDY ON SUBSTUTION OF Fe IN BaFe12O19 BY Mn[J].Acta Physica Sinica,1986,35(7):833-840. |
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| Authors: | FU HUA ZHAI HONG-RU ZHANG YU-CHANG GU BEN-XI and LI JlNG-YUAN |
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| Abstract: | In this paper, we studied the substitution of Fe in BaFe12O19 by Mn. The main results are as follows: (1) For polycrystalline materials of composition BaFe12-xMnxO19, the amount of maximum substitution of Mn is x=4, and the valence of Mn ions are mostly 3+. (2) Mn ions enter only 12 k and 2 a sites, and noncolinear spin structure appears with higher content of Mn (3) The saturation magnetization σ, the anisotropy constant k1 and the Curie temperatur Tc decreas with the increase of Mn content. (4) The zero field splitting constant Dh of Mn in M-type hexagonal structure is lower then that in garnet structure. |
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