Temperature-driven transition into vortex clusters in low-kappa intertype superconductors

Physical Review B: Condensed Matter and Materials Physics. 2023. Vol. 107. No. 17. Article 174527.

Backs A., Al-Falou A., Вагов А. В., Böni P., Mühlbauer S.

In the vicinity of the type-I/type-II crossover in conventional superconductors, vortices exhibit a nonmonotonic interaction, which leads to exotic vortex matter states. We perform molecular dynamics simulations on a model superconductor in the intertype regime. In a field cooled approach, we examine the transition of a homogeneous vortex lattice (VL) into a structure consisting of VL domains and Meissner-state domains. The results show extraordinary stability of the transition against vortex pinning and a strong dependence on the external magnetic field.

Ключевые слова: кластеризация, молекулярная динамика, clustering, вихри, межтиповая сверхпроводимость, molecular dynamics, intertype superconductivity, vortices

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