论文标题

磁性偶性簇的热动力学中的时间尺度

Time scales in the thermal dynamics of magnetic dipolar clusters

论文作者

Mellado, Paula

论文摘要

热活动结构的集体行为提供了有关新兴程度的线索以及决定各种系统的低能状态的物理机制。在这里,正方形斑块上磁性偶极子的热活动动力学是根据与热浴的接触的布朗振荡器建模的。 Langevin方程对一组相互作用的X-y偶极子的溶液允许识别时间尺度和相关长度,这些长度揭示了相互作用,温度,阻尼和惯性如何确定人工偶极系统中边缘和块状磁中替索斯的频率模式。

The collective behavior of thermally active structures offers clues on the emergent degrees of freedom and the physical mechanisms that determine the low energy state of a variety of systems. Here, the thermally active dynamics of magnetic dipoles at square plaquettes is modeled in terms of Brownian oscillators in contact with a heat bath. Solution of the Langevin equation for a set of interacting x-y dipoles allows the identification of the time scales and correlation length that reveal how interactions, temperature, damping and inertia may determine the frequency modes of edge and bulk magnetic mesospins in artificial dipolar systems.

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