| A-B-A系统界面各相异性与声学型界面自旋波存在条件 |
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| 引用本文： | 张福建,宋波,云国宏.A-B-A系统界面各相异性与声学型界面自旋波存在条件[J].内蒙古大学学报(自然科学版),2000,31(1):17-24. |
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| 作者姓名： | 张福建 宋波 云国宏 |
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| 作者单位： | 内蒙古大学物理学系 |
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| 摘 要： | 计入外磁场、铁磁和反铁磁层间耦合、体和界面各向异性后，研究了Ａ－Ｂ－Ａ三链系统中物声学型界面自旋波及其存在条件，结果发现，在此系统中，存在奇、偶两种不同宇称的声学型界面自旋波，在没的界面各向异性条件，这两种声学型界面自旋波解的个数分别在０￣２之间变化。
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| 关 键 词： | 界面自旋波 界面各向异性 A－B－A系统 磁性多层膜 |
Effect of the Interface Anisotropy on Acoustical Interface Spin Waves in A B A System |
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| ZHANG Fu jian,SONG Bo,YUN Guo hong.Effect of the Interface Anisotropy on Acoustical Interface Spin Waves in A B A System[J].Acta Scientiarum Naturalium Universitatis Neimongol,2000,31(1):17-24. |
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| Authors: | ZHANG Fu jian SONG Bo YUN Guo hong |
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| Abstract: | The model of a ferromagnetic A B A system,described by Heisenberg Hamiltonian the involving interaction between nearest neighbors,is investigated.Our theory holds for arbitrary external magnetic field,ferromagnetic or antiferromagnetic interface exchange coupling,and arbitrary easy axis (unaxial) volume and interface anisotropy.We obtain the exact existence conditions of acoustical interface spin waves (AISW),and find there are two types AISW with different parity in this system and zero to two solutions can exist for each type AISW under different interface anisotropy. |
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| Keywords: | acoustical interface spin wave interface anisotropy interface coupling |
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