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Relaxation process of magnetic friction under sudden changes in velocity
Physical Review E ( IF 2.4 ) Pub Date : 2021-07-22 , DOI: 10.1103/physreve.104.014126 Hisato Komatsu 1
Physical Review E ( IF 2.4 ) Pub Date : 2021-07-22 , DOI: 10.1103/physreve.104.014126 Hisato Komatsu 1
Affiliation
Although there have been many studies of statistical mechanical models of magnetic friction, most of these have focused on the behavior in the steady state. In this study, we prepare a system composed of a chain and a lattice of Ising spins that interact with each other, and we investigate the relaxation of the system when the relative velocity changes suddenly. The situation where is given is realized by attaching the chain to a spring, the other end of which moves with a constant velocity . Numerical simulation finds that, when the spring constant has a moderate value, the relaxation of the frictional force is divided into two processes, which are a sudden change and a slow relaxation. This behavior is also observed on regular solid surfaces, although caused by different factors than our model. More specifically, the slow relaxation process is caused by relaxation of the magnetic structure in our model but is caused by creep deformation in regular solid surfaces.
中文翻译:
速度突变下磁摩擦的弛豫过程
尽管已经有许多关于磁摩擦的统计力学模型的研究,但其中大部分都集中在稳态下的行为上。在这项研究中,我们准备了一个由链和一个相互相互作用的伊辛自旋点阵组成的系统,我们研究了当相对速度为突然改变。那里的情况 给定是通过将链条连接到弹簧来实现的,弹簧的另一端以恒定速度移动 . 数值模拟发现,当弹簧常数为适中值时,摩擦力的松弛分为突变和缓慢松弛两个过程。这种行为也在规则的固体表面上观察到,尽管是由与我们的模型不同的因素引起的。更具体地说,缓慢弛豫过程是由我们模型中的磁结构弛豫引起的,但由规则固体表面的蠕变变形引起。
更新日期:2021-07-22
中文翻译:
速度突变下磁摩擦的弛豫过程
尽管已经有许多关于磁摩擦的统计力学模型的研究,但其中大部分都集中在稳态下的行为上。在这项研究中,我们准备了一个由链和一个相互相互作用的伊辛自旋点阵组成的系统,我们研究了当相对速度为突然改变。那里的情况 给定是通过将链条连接到弹簧来实现的,弹簧的另一端以恒定速度移动 . 数值模拟发现,当弹簧常数为适中值时,摩擦力的松弛分为突变和缓慢松弛两个过程。这种行为也在规则的固体表面上观察到,尽管是由与我们的模型不同的因素引起的。更具体地说,缓慢弛豫过程是由我们模型中的磁结构弛豫引起的,但由规则固体表面的蠕变变形引起。