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首页> 外文期刊>Physica, C. Superconductivity and its applications >Depinning and dynamic phases in driven three-dimensional vortex lattices in anisotropic superconductors
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Depinning and dynamic phases in driven three-dimensional vortex lattices in anisotropic superconductors

机译:各向异性超导体中驱动三维涡旋晶格的去钉相和动态相

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We use three-dimensional molecular dynamics simulations of magnetically interacting pancake vortices to study the dynamic phases of vortex lattices in highly anisotropic materials such as BSCCO. Our model treats the magnetic interactions of the pancakes exactly, with long-range logarithmic interactions both within and between planes. The pancake vortices decouple at low drives and show two-dimensional plastic flow. The vortex lattice both recouples and reorders as the driving current is increased, eventually forming a recoupled crystalline-like state at high drives. We construct a phase diagram as a function of interlayer coupling and show the relationship between the recoupling transition and the single-layer reordering transitions. [References: 7]
机译:我们使用磁性相互作用的薄煎饼漩涡的三维分子动力学模拟来研究高度各向异性材料(例如BSCCO)中漩涡晶格的动力学相。我们的模型可以精确地处理薄煎饼的磁性相互作用,并在平面内和平面之间进行远距离对数相互作用。薄煎饼涡流在低速驱动下解耦并显示出二维塑性流动。随着驱动电流的增加,涡旋晶格既重新耦合又重新排序,最终在高驱动下形成重新耦合的晶体状状态。我们构造了一个作为层间耦合函数的相图,并显示了重耦合跃迁和单层重排序跃迁之间的关系。 [参考:7]

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