| 声-光型界面自旋波与界面各向异性 |
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| 引用本文： | 张福建,云国宏.声-光型界面自旋波与界面各向异性[J].内蒙古大学学报(自然科学版),1998(6). |
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| 作者姓名： | 张福建 云国宏 |
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| 作者单位： | 内蒙古大学物理学系固体物理研究室 |
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| 摘 要： | 在考虑了外磁场、界面各向异性后，详细研究了铁磁和反铁磁层间耦合下自旋双链系统中的声－光型界面自旋波及其存在的充要条件．在适当的界面各向异性条件下，系统中可以存在０、１或２个声－光型界面自旋波，并发现其能量随铁磁层间耦合强度的增大而升高，随反铁磁层间耦合强度的增大而降低．
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| 关 键 词： | 声－光型界面自旋波，界面各向异性，层间耦合 |
Effect of Interface Anisotropy on Acoustical Optical Interface Spin Waves |
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| ZHANG Fujian,YUN Guohong.Effect of Interface Anisotropy on Acoustical Optical Interface Spin Waves[J].Acta Scientiarum Naturalium Universitatis Neimongol,1998(6). |
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| Authors: | ZHANG Fujian YUN Guohong |
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| Abstract: | The model of a ferromagnetic bichain with arbitrary easy axsi unaxial volume and interface anisotropy,and ferromagnetic or antiferromagnetic interface exchange coupling is investigated.The necessary and sufficient condition for the existence of acoustical optical interface spin waves (A OISW) are obtained exactly.It has been found that under certian circumstances either 0,1 or 2 A OISW may exist in the system.The stronger the ferromagnetic interface coupling,the highter the energy of A OISW,but the stronger the antiferromagnetic interface coupling,the lower the energy of A OISW. |
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| Keywords: | acoustical optical interface spin waves interface anisotropy interface coupling |
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