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Bibliographic Details
Main Authors: Xu, Zhipeng, Jiang, Kun, Hu, Jiangping
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.05830
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Table of Contents:
  • Vortex motion plays a central role in determining the resistance of two-dimensional superconductors, both in the context of the Berezinskii-Kosterlitz-Thouless (BKT) transition and in the mixed state of type-II superconductors under magnetic fields. In this study, we introduce an anisotropic pinning potential to investigate vortex-induced resistance across the BKT transition and the upper critical field $H_{c2}$ transition. Our results demonstrate that the anisotropic pinning potential gives rise to distinct critical temperatures and upper critical fields along two orthogonal directions of current transport. These findings provide a general route toward the realization of multiple "critical temperatures" in two-dimensional superconductors.