外场作用下的一维Neel壁
One-dimensional Neel walls under applied external fields
摘要:
我们提出了一个详细的分析一维Néel壁在薄的单轴铁磁薄膜中的存在下的面内施加的外场在垂直于易磁化轴的方向。在简化的一维薄膜模型中,我们提出了一个非局部的变分问题,其极小值由一维Néel壁廓线给出。我们证明存在性,唯一性(平移和反射),正则性,严格单调性和精确渐近的衰减的极小考虑变分问题。
英文摘要:
We present a detailed analysis of one-dimensional Néel walls in thin uniaxial ferromagnetic films in the presence of an in-plane applied external field in the direction normal to the easy axis. Within the reduced one-dimensional thin film model, we formulate a non-local variational problem whose minimizers are given by one-dimensional Néel wall profiles. We prove existence, uniqueness (up to translations and reflections), regularity, strict monotonicity and the precise asymptotics of the decay of the minimizers in the considered variational problem.
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