铁磁体相变中作为耗散结构的进动球孤子
Precessing ball solitons as dissipative structures during a phase transition in a ferromagnet
摘要：
分析了在垂直于主磁场的周期磁场作用下，沿各向异性轴方向的磁场在铁磁体中引起的一级相变中的进动球孤子（PBS）.在此条件下，产生的平衡孤子的特性由周期场的频率唯一决定，而不可能产生其它频率的孤子。结果表明，平衡PBS的本质上是“耗散结构”，可以出现在一个亚稳态。
英文摘要：
Precessing ball solitons (PBS) in a ferromagnet during the first order phase transition induced by a magnetic field directed along the axis of anisotropy, while the action of the periodic field perpendicular to the main magnetic field, have been analyzed. Under this condition, the characteristics of arising equilibrium PBS's are uniquely determined by the frequency of the periodic field, but the solitons with other frequencies are impossible. It is shown that the equilibrium PBS's are essentially the "dissipative structures" that can arise in a metastable state.
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