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首页> 外文期刊>The European Physical Journal B - Condensed Matter and Complex Systems >The energy bands of quantized spin waves and the uniaxial anisotropy in a biferromagnetic system
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The energy bands of quantized spin waves and the uniaxial anisotropy in a biferromagnetic system

机译：双铁磁系统中量子自旋波的能带和单轴各向异性

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摘要

The eigenproblems of quantized spin waves in a (100) ferromagnetic bilayer system have been investigated theoretically using the interface rescaling approach. The energy-band structure of the system has been obtained and the effect of the uniaxial bulk anisotropy field of easy-axis type on the energy bands are explored thoroughly. It is found that all kinds of eigenmodes of the spin waves in the biferromagnetic system are determined by the bulk exchange coupling constant, the interface exchange coupling constant, the spin of lattice, the number of atomic layers and the uniaxial bulk anisotropy. Especially, we explore the effect of the uniaxial bulk anisotropy field of easy-axis type on the energy bands of first Brillouin zone and the existence condition of all kinds of the eigenmodes.
机译：理论上已经使用界面缩放方法研究了（100）铁磁双层系统中量化自旋波的本征问题。获得了系统的能带结构，并深入研究了易轴型单轴体各向异性场对能带的影响。发现双铁磁系统中自旋波的各种本征模由体交换耦合常数，界面交换耦合常数，晶格自旋，原子层数和单轴体各向异性决定。特别是，我们探讨了易轴型单轴体各向异性场对第一布里渊区能带和各种本征模态存在条件的影响。

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