| 磁性石榴石单晶Bi-YIG的布里渊散射 |
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| 引用本文： | 刘玉龙,张鹏翔,莫育俊,屠安.磁性石榴石单晶Bi-YIG的布里渊散射[J].物理学报,1987,36(5):651-654. |
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| 作者姓名： | 刘玉龙 张鹏翔 莫育俊 屠安 |
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| 作者单位： | 中国科学院物理研究所 |
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| 摘 要： | 本文报道用激光布里渊散射法测量BixY3-xFe5O12(x=0,0.14,0.36,0.54)室温下的布里渊散射,观察到了热激发体磁振子散射,依据磁振子的频率-磁场关系,导出了材料的磁性参数。并发现了Bi代入时引起的自旋波劲度系数的增大现象。
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| 收稿时间： | 1986-06-12 |
BR1LLOUIN SCATTERING FROM BISMUTH SUBSTITUTED IRON GARNETS |
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| LIU YU-LONG,ZHANG PENG-XIANG,MO YU-JUN and TU AN.BR1LLOUIN SCATTERING FROM BISMUTH SUBSTITUTED IRON GARNETS[J].Acta Physica Sinica,1987,36(5):651-654. |
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| Authors: | LIU YU-LONG ZHANG PENG-XIANG MO YU-JUN and TU AN |
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| Abstract: | Brillouin scattering spectra of bismuth substituted iron garnets BixY3-xFe5O12 (x = 0, 0.14, 0.36, 0.54) were measured. The thermally excited bulk magnons were observed. Some magnetic parameters of these samples were determined according to the dispersion relation of the bulk magnons. We found that there is a dependance of the spin wave stiffness constant on bismuth contents, the higher the bismuth contents, the smaller the spin wave stiffness constant. |
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