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Manipulation of vortex arrays with thermal gradients by applying dynamic heat sources
Superconductor Science and Technology ( IF 3.6 ) Pub Date : 2021-03-15 , DOI: 10.1088/1361-6668/abdede
Zhidong Chen 1, 2 , Huadong Yong 1, 2 , Youhe Zhou 1, 2
Affiliation  

In this paper, we investigate the manipulation of vortex arrays of magnetic flux by using dynamic heat sources in the superconducting strip. The time-dependent Ginzburg–Landau (TDGL) equations and the heat diffusion equation are numerically solved to study the effect of the dynamic heat sources and the vortex dynamics of the sample. Three distinct velocity ranges were shown to occur, depending on the vortex motion and the corresponding characteristics of the induced voltage. Due to the relationship among the driving force, viscous force, and vortex–vortex interaction, the vortex motion changes from direct motion to a roughly harmonic motion with the velocity of the heat source. Meanwhile, the electromagnetic performance of the sample is also related to the heat source parameters, the applied magnetic fields and the pinning centers. In addition, the thermal effect leads to a more complex non-linear relationship between the induced voltage and the heat source velocity.



中文翻译:

通过应用动态热源操纵具有热梯度的涡流阵列

在本文中,我们研究了通过使用超导带中的动态热源来操纵磁通量的涡流阵列。对瞬态Ginzburg-Landau (TDGL)方程和热扩散方程进行数值求解,以研究样品的动态热源和涡流动力学的影响。根据涡旋运动和感应电压的相应特性,显示出三个不同的速度范围。由于驱动力、粘性力和涡-涡相互作用之间的关系,涡运动随着热源的速度从直接运动变为大致谐波运动。同时,样品的电磁性能还与热源参数、外加磁场和钉扎中心有关。此外,

更新日期:2021-03-15
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